"Ghosh S.,Sakae Toyoda,C. Buizert,D. M. Etheridge,R. L. Langenfelds,N. Yoshida,S. J. Kim,J. Ahn","Concentration and Isotopic Composition of Atmospheric N2O Over the Last Century",,"Journal of Geophysical Research: Atmospheres",,"Vol. 128","No. 12",,2023,May
"Toyoda S.,D. Goto,S. Morimoto,M. Sasakawa,T. Machida,Y. Tohjima,D. Worthy,N. Yoshida","Trend of N2O isotope ratios in the Arctic atmosphere","7th International Symposium on Arctic Research (ISAR-7)",,,,,,2023,Mar.
"Nishina K.,L. Melling,Sakae Toyoda,M. Itoh,K. Terajima,J. W. B. Waili,G. X. Wong,F. Kiew,E. B. Aeries,R. Hirata,Y. Takahashi,T. Onodera","Dissolved N2O concentrations in oil palm plantation drainage in a peat swamp of Malaysia",,"Science of the Total Environment",,"Vol. 872",,,2023,Feb.
"Prondzinsky P.,S. Toyoda,S. E. McGlynn,Sakae Toyoda","The methanogen core and pangenome: conservation and variability across biology's growth temperature extremes",,"DNA Research",,"Vol. 30","No. 1",,2023,Jan.
"劉 兆豊,服部 祥平,石野 咲子,豊田 栄,吉田 尚弘,平沢 尚彦,原 圭一郎,林 政彦","南極昭和基地における大気中硝酸塩の同位体組成の季節変動解析","第27回大気化学討論会",,,,,,2022,Nov.
"石戸谷重之,遠嶋康徳,菅原敏,奈良英樹,森本真司,丹羽洋介,後藤大輔,石島健太郎,坪井一寛,青木伸行,中岡慎一郎,亀崎和輝,豊田栄,辻野博之,村山昌平","気候変動と炭素・酸素循環の包括的評価を目指した大気主成分と極微量成分の長期広域観測","日本気象学会2022年度秋季大会",,,,,,2022,Oct.
"Sambit Ghosh,Sakae Toyoda,Christo Buizert,Youngjoon Jang,David Etheridge,Pieter Tans,Naohiro Yoshida,Jinho Ahn","Three-phased growth of atmospheric N2O concentration over the last century","3rd IPICS Open Science Conference",,,,,,2022,Oct.
"Kazuya Nishina,Lulie Melling,Sakae Toyoda,Masayuki Itoh,Joseph W.B. Waili,Mohd. Z. Abdullah,Guan X. Wong,Frankie Kiew,Edward B. Aeries,Ryuichi Hirata,Yoshiyuki Takahashi,Takashi Onodera","Seasonal Dynamics of Dissolved N2O in the Drainage ditch water and the Palm Oil Mill Effluent of Oil Palm Plantation in Sarawak","AsiaFlux 2022",,,,,,2022,Sept.
"Daoping He,Hideshi Ooka,Li Yamei,Yujeong Kim,Akira Yamaguchi,Kiyohiro Adachi,Daisuke Hashizume,Naohiro Yoshida,Sakae Toyoda,Sun Hee Kim,Ryuhei Nakamura","Regulation of the electrocatalytic nitrogen cycle based on sequential proton?electron transfer",,"Nature Catalysis",,"Vol. 5",,"pp. 798-806",2022,Sept.
"Kristyna Kantnerova,Shohei Hattori,Sakae Toyoda,Naohiro Yoshida,Lukas Emmenegger,Stefano M. Bernasconi,Joachim Mohn","Clumped isotope signatures of nitrous oxide formed by bacterial denitrification",,"Geochimica et Cosmochimica Acta",,"Vol. 328",,"pp. 120-129",2022,May
"Shigeyuki ISHIDOYA,Satoshi SUGAWARA,Shinji MORIMOTO,Sakae Toyoda,Hideyuki HONDA,Shuji Aoki,Takakiyo NAKAZAWA,Daisuke GOTO,Yoichi INAI,Kentaro ISHIJIMA,Fumio HASEBE","Long-term changes in gravitational separation of the stratospheric air over Japan","JpGU 2022",,,,,,2022,May
"Shoko Hikichi,Shinji Morimoto,Taku Umezawa,Takuya Saito,Sakae Toyoda,Satoshi Sugawara,Shigeyuki Ishidoya,Hideyuki Honda,Shuji Aoki","Vertical profiles of halocarbons in the stratosphere over Japan in 2020 and implications for the “mean age” ofthe stratospheric air","日本地球惑星科学連合大会",,,,,,2022,May
"F. Damak,Sakae Toyoda,M. Takeda,H. Akiyama,Y. Sasaki,K. Minamisawa","Insights into nitrous oxide reduction by soybean inoculated with Bradyrhizobium from concentration and isotopocule analyses in a field","10th International Symposium on Isotopomers/12th Isotopes Conference",,,,,,2022,May
"Sakae Toyoda,D. Goto,S. Morimoto,M. Sasakawa,T. Machida,Y. Tohjima,D. Worthy,N. Yoshida","Spatio-temporal distributions of atmospheric nitrous oxide and its isotopocules","10th International Symposium on Isotopomers/12th Isotopes Conference",,,,,,2022,May
"Kushi Kudo,Sakae Toyoda,Keita Yamada,Naohiro Yoshida,Daisuke Sasano,Naohiro Kosugi,Akihiko Murata,Hiroshi Uchida,Shigeto Nishino","Source analysis of dissolved methane in Chukchi Sea and Bering Strait during summer-autumn of 2012 and 2013",,"Marine Chemistry",,"Vol. 243",,,2022,Apr.
"Joachim Mohn,Christina Biasi,Samuel Bode,Pascal Boeckx,Paul J. Brewer,Sarah Eggleston,Heike Geilmann,Myriam Guillevic,Jan Kaiser,Kristyna Kantnerova,Heiko Moossen,Joanna Mueller,Mayuko Nakagawa,Ruth Pearce,Isabell von Rein,David Steger,Sakae Toyoda,Wolfgang Wanek,Sarah K. Wexler,Naohiro Yoshida,Longfei Yu","Isotopically-characterised N2O reference materials for use as community standards",,"Rapid Commun Mass Spectrom",,"Vol. 36","No. 13",,2022,Mar.
"Yuta Isaji,C. Yoshikawa,N. O. Ogawa,K. Matsumoto,A. Makabe,S. Toyoda,N. F. Ishikawa,H. Ogawa,H. Saito,M. C. Honda,N. Ohkouchi","Nitrogen Sources for Phytoplankton in the Eastern Indian Ocean Determined From ﾎｴ15N of Chlorophyll a and Divinylchlorophyll a",,"Geochemistry, Geophysics, Geosystems",,"Vol. 23","No. 4",,2022,Mar.
"土屋正史，内田 裕，北橋 倫，中嶋亮太，横川太一，藤原 義弘，矢吹 彬憲，土田真二，古島 靖夫，生田 哲朗，Lindsay Dhugal，藤倉克則，丸本幸治，多田雄哉，武内章記，岡部宣章，川口大樹，豊田 栄，川島彰悟，板井啓明，岩田 忠久，中田 晴彦，Nurlatifah，川村喜一郎，中野健吾，藤元 明，KM20-08/-09/-11乗船者一同","海洋汚染物質の実態把握と海洋生態系への影響評価 KM20-08, -09, -11航海概要","海と地球のシンポジウム2021（オンライン）",,,,,,2021,Dec.
"石戸谷重之，菅原敏，青木周司，森本真司，本田秀之，豊田栄，遠嶋康徳，後藤大輔，石島健太郎，長谷部文雄，丹羽洋介，青木伸行，村山昌平，飯島一征，吉田哲也","成層圏大気重力分離と空気年齢の新たな応用 ー海洋貯熱量変動評価における重要性ー","大気球シンポジウム2021（オンライン）",,,,,,2021,Nov.
"杉本颯馬,豊田栄,山田桂太","大気中微量水素の安定同位体比測定法開発","大気化学討論会（オンライン）",,,,,,2021,Nov.
"梅澤拓,丹羽洋介,斉藤拓也,齋藤尚子,豊田栄","大気化学の将来構想：温室効果気体とオゾン層破壊物質","大気化学討論会（オンライン）",,,,,,2021,Nov.
"菅原敏,青木周司,森本真司,本田秀之,石戸谷重之,後藤大輔,梅澤拓,長谷部文雄,石島健太郎,飯嶋一征,福家英之,吉田哲也,青木周司,森本真司,本田秀之,中澤高清,豊田栄,石戸谷重之,後藤大輔,梅澤拓,長谷部文雄,石島健太郎,飯嶋一征,福家英之,吉田哲也","クライオサンプリングによる成層圏大気の長期観測と今後の展開","大気球シンポジウム2021（オンライン）",,,,,,2021,Nov.
"Zhenxing Xu,Shohei Hattori,Yoko Masuda,Hideomi Itoh,Sakae Toyoda,Naohiro Yoshida,Keishi Senoo","Isotopomer evidence for nitrate reductase as a key enzyme for N2O production in DNRA process","8th synposium of bio/organicgeochemistry",,,,,,2021,Nov.
"Zhenxing Xu,Yoko Masuda,Hideomi Itoh,Shohei Hattori,Sakae Toyoda,Naohiro Yoshida,Keishi Senoo","Nitrate reductase is a key enzyme for N2O production in DNRA process","日本微生物生態学会第34回大会（オンライン）",,,,,,2021,Nov.
"伊左治雄太,吉川知里,小川奈々子,松本和彦,眞壁明子,豊田栄,石川尚人,小川浩史,斎藤宏明,本多牧生,大河内直彦","クロロフィル色素の窒素同位体比分析による東インド洋植物プランクトンの窒素源解析","日本地球化学会年会",,,,,,2021,Sept.
"Sakae Toyoda,Tomoya Matsui,Tatsuro Hirane,Taketomo Fujiwara,Naohiro Yoshida","Response of N2O production by oceanic nitrifying bacteria to acidification","International Conference on Nitrification (online)",,,,,,2021,July
"Wei Wei,Kazuo Isobe,Yutaka Shiratori,Midori Yano,Sakae Toyoda,Keisuke Koba,Naohiro Yoshida,Haoyang Shen,Keishi Senoo","Revisiting the involvement of ammonia oxidizers and denitrifiers in nitrous oxide emission from cropland soils",,"Environmental Pollution",,"Vol. 287",,,2021,June
"豊田栄,水野勉,後藤大輔,森本真司","南極昭和基地における大気中N2O同位体比の経年変化","日本地球惑星科学連合大会2021（オンライン）",,,,,,2021,June
"Sambit Ghosh,Sakae Toyoda,Jinho Ahn,Youngjoon Jang,Naohiro Yoshida","Understanding the evolution of atmospheric nitrous oxide over the last century from the stable isotopes of the firn air at Styx Glacier, East Antarctica","EGU General Assembly 2021: Virtual",,,,,,2021,Apr.
"Sakae Toyoda,Takahito Kakimoto,Kushi Kudo,Naohiro Yoshida,Daisuke Sasano,Naohiro Kosugi,Masao Ishii,Sohiko Kameyama,Mahomi Inagawa,Hisayuki Yoshikawa-Inoue,Shigeto Nishino,Akihiko Murata,Shigeyuki Ishidoya,Shinji Morimoto","Distribution and Production Mechanisms of N2O in the Western Arctic Ocean",,"Global Biogeochemical Cycles",,"Vol. 35",,,2021,Mar.
"菅原敏,青木周司,森本真司,本田秀之,豊田栄,石戸谷重之,後藤大輔,梅澤拓,長谷部文雄,石島健太郎,飯嶋一征,吉田 哲也","マルチクロックトレーサーによる大気年代推定（B20-04 結果速報）","大気球シンポジウム",,,,,,2020,Dec.
"石川真帆,下坂琢哉,豊田栄,山田桂太,中川麻悠子,Zhang Naizhong,吉田尚弘","SIトレーサブルな安定炭素同位体比標準ガスの開発","日本地球化学会年会",,,,,,2020,Nov.
"吉川知里,眞壁明子,松井洋平,豊田栄,本多牧生,横川太一,布浦拓郎,大河内直彦","東部インド洋における硝酸の窒素酸素同位体比","日本地球化学会年会",,,,,,2020,Nov.
"Sambit Ghosh,Sakae Toyoda,Jinho Ahn,Youngjoon Jang,Naohiro Yoshida","Evolution of atmospheric nitrous oxide for the last 100 years: Insights from the stable isotope values of firn air at Styx Glacier, East Antarctica","2020 Fall Joint Conference of the Geological Sciences,the Geological Society of Korea (online)",,,"Vol. 10",,"p. 91",2020,Oct.
"Guha, T.,Mahata, S.,Bhattacharya, S. K.,Singh, B. B.,Toyoda, S.,Yoshida, N.,Liang, M. C.","Stratospheric Incursion as a Source of Enhancement of the Isotopic Ratios of Atmospheric N2 O at Western Pacific",,"Earth and Space Science",,"  7","  11",,2020,Sept.
"Chun, Y.,D. Kim,S. Hattori,S. Toyoda,N. Yoshida,J. Huh,J. H. Lim,J. H. Park","Temperature control on wastewater and downstream nitrous oxide emissions in an urbanized river system",,"Water Research",,"  187",,,2020,Sept.
"Kantnerova, K.,L. Yu,D. Zindel,M. S. Zahniser,D. D. Nelson,B. Tuzson,M. Nakagawa,S. Toyoda,N. Yoshida,L. Emmenegger,S. M. Bernasconi,J. Mohn","First investigation and absolute calibration of clumped isotopes in N2O by mid-IR laser spectroscopy",,"Rapid Communications in Mass Spectrometry",,"Vol. 34","No. 15",,2020,Aug.
"Sakae Toyoda,Kotaro Terajima,Naohiro Yoshida,Chisato Yoshikawa,Akiko Makabe,Fuminori Hashihama,Hiroshi Ogawa","Distribution and isotopic composition of N2O in the eastern Indian Ocean","JpGU-AGU Joint Meeting 2020: Virtual",,,,,,2020,July
"豊田栄","安定同位体比を用いた陸域生態系におけるN2O放出と吸収の解明",,"大気化学研究","日本大気化学会","  43",,,2020,July
"AP Prondzinsky,LM Ward,L Gastoldi,D Fike,S Toyoda,SE McGlynn","Single Cell and Genomic Characterization of Cyanobacteria in Ancient Environment Analogues","JpGU-AGU Joint Meeting 2020: Virtual",,,,,,2020,July
"Chisato Yoshikawa,Akiko Makabe,Yohei Matsui,Sakae Toyoda,Makio Honda,Naohiko Ohkouchi","Nitrate isotopes in the Bay of Bengal","JpGU-AGU Joint Meeting 2020: Virtual",,,,,,2020,July
"A. PAULINA PRONDZINSKY,LEWIS M. WARD,SAKAE TOYODA,SHAWN E. MCGLYNN","Genome analysis and distribution of cyanobacteria belonging to Thermosynechococcus in varying geochemical environments","Goldschmidt virtual 2020",,,,,,2020,June
"Yu, L.,E. Harris,D. Lewicka-Szczebak,M. Barthel,M. R. A. Blomberg,S. J. Harris,M. S. Johnson,M. F. Lehmann,J. Liisberg,C. Muller,N. E. Ostrom,J. Six,S. Toyoda,N. Yoshida,J. Mohn","What can we learn from N2O isotope data? - Analytics, processes and modelling",,"Rapid Commun. Mass Spectrom.",,"  34","  20",,2020,June
"Krist?na Kantnerov?,Longfei Yu,Daniel Zindel,Mark S. Zahniser,David D. Nelson,B?la Tuzson,Lukas Emmenegger,Mayuko Nakagawa,Sakae Toyoda,Naohiro Yoshida,Stefano M. Bernasconi,Joachim Mohn","Clumped isotope analysis in nitrous oxide by mid-IR laser spectroscopy: analytical developments and validation","EGU General Assembly 2020, Online",,,,,,2020,May
"Joachim Mohn,Joanna Rupacher,Heiko Moossen,Sakae Toyoda,Christina Biasi,Jan Kaiser,Stephen Harris,Jesper Liisberg,Benjamin Wolf,Longlong Xia,Longfei Yu,Krist?na Kantnerov?,Jing Wei,Kerstin Zeyer,Ruth Pearce,Eric Mussell Webber,Aimee Hillie,Bryce Kelly,Thomas Blunier,Naohiro Yoshida,Paul Brewer","N2O isotope research: development of reference materials and metrological characterization of OIRS analyzers within the SIRS project","EGU General Assembly 2020, Online",,,,,,2020,May
"Hyodo Ayumi,Malghani Saadat,Zhou Yong,Mushinski Ryan M.,Toyoda Sakae,Yoshida Naohiro,Boutton Thomas W,West Jason B","Biochar amendment suppresses N2O emissions but has no impact on 15N site preference in an anaerobic soil",,"Rapid Commun. Mass Spectrom.",,"vol. 33",,"p. 165-175",2019,Dec.
"Breider, F.,C. Yoshikawa,A. Makabe,S. Toyoda,M. Wakita,Y. Matsui,S. Kawagucci,T. Fujiki,N. Harada,N. Yoshida","Response of N2O production rate to ocean acidification in the western North Pacific",,"Nature Climate Change",,"Vol. 9(12)",,"pp. 954-958",2019,Dec.
"豊田栄,吉田尚弘,町田敏暢,遠嶋康徳,笹川基樹,森本真司,Doug Worthy,石島健太郎","北半球における対流圏N2O安定同位体組成の長期変動","第24回大気化学討論会",,,,,,2019,Nov.
"Sakae Toyoda,Naohiro Yoshida","N2O isotopocule analysis by IRMS to detect and interpret long-term trends in atmospheric N2O","Workshop: What can we learn from N2O isotope data?",,,,,,2019,Oct.
"Joanna Rupacher,Sakae Toyoda,Heiko Moossen,Christina Biasi,Longfei Yu,Naohiro Yoshida,Paul Brewer,Joachim Mohn","Development of new N2O reference materials for d15N, d18O and 15N site preference within the EMPIR project SIRS","Workshop: What can we learn from N2O isotope data?",,,,,,2019,Oct.
"工藤久志,豊田栄,山田桂太,吉田尚弘,小杉如央,吉川久幸,村田昌彦,西野茂人","「みらい」2013年秋季北極航海（MR13-06航海）の 定点観測点における溶存メタンの時間変動","2019年度日本海洋学会秋季大会",,,,,,2019,Sept.
"豊田栄,松井智哉,藤原健智,吉田尚弘","海洋性硝化細菌によるN2O生成の酸性化への応答","2019年度日本地球化学会年会",,,,,,2019,Sept.
"寺嶋 晃太朗,豊田 栄,吉田 尚弘","東部インド洋における一酸化二窒素の分布と生成・消滅メカニズムの解明","2019年度日本海洋学会秋季大会",,,,,,2019,Sept.
"Toyoda, S.,H. Yamagishi,A. Fujii,N. Yoshida,S. Watanabe","Identifying the origin of nitrous oxide dissolved in deep ocean by concentration and isotopocule analyses",,"Scientific Reports",,"Vol. 9(1)",,"p. 7790",2019,May
"F. HASEBE,S. AOKI,S. MORIMOTO,Y. INAI,T. NAKAZAWA,S. SUGAWARA,C. IKEDA,H. HONDA,H. YAMAZAKI,HALIMURRAHMAN,N. KOMALA,F. A. PUTRI,A. BUDIYONO,M. SOEDJARWO,S. ISHIDOYA,S. TOYODA,T. SHIBATA,M. HAYASHI,N. EGUCHI,N. NISHI,M. FUJIWARA,S.-Y. OGINO,M. SHIOTANI,T. SUGIDACHI,D. A. BELIKOV,H. NGUYEN-THI","CUBE/Biak: Observations of dynamics and chemistry affecting the air on its ascent in the tropical lower stratosphere","SPARC 2018 General Assembly",,,,,,2018,Oct.
"小林香音,服部祥平,松木篤,石野咲子,鈴木希実,亀崎和輝,豊田栄,吉田尚弘","能登半島における大気硫酸エアロゾルの三酸素同位体組成の観測","日本地球化学会年会2018",,,,,,2018,Sept.
"Ishidoya, S.,S. Sugawara,Y. Inai,S. Morimoto,H. Honda,C. Ikeda,G. Hashida,T. Machida,Y. Tomikawa,S. Toyoda,D. Goto,S. Aoki,T. Nakazawa","Gravitational separation of the stratospheric air over Syowa, Antarctica and its connection with meteorological fields",,"Atmos. Sci. Lett.",,"  2018",,,2018,Sept.
"奥村 優,中川麻悠子,丹 佑太,豊田 栄,山田桂太,吉田尚弘","酸素濃度の異なる微生物生態系における脂肪酸 δC 及び δH 解析","地球化学会年会",,,,,,2018,Sept.
"徐 佳欣,Sakae Toyoda,keita Yamada,NAOHIRO YOSHIDA","Development of on-line analytical method for hydrogen stable isotope ratio in H2 from anthropogenic sources","日本地球化学会年会2018",,,,,,2018,Sept.
"松井智哉,豊田栄,藤原健智,吉田尚弘","硝化菌による一酸化二窒素生成過程に海洋酸性化が及ぼす影響の解明","日本地球化学会年会2018",,,,,,2018,Sept.
"Sarah Eggleston,Sakae Toyoda,Heiko Moossen,Christina Biasi,Longfei Yu,Naohiro Yoshida,Paul Brewer,Joachim Mohn","Development of international N2O reference materials for site preference measurements","Jahrestagung der Arbeitsgemeinschaft Stabile Isotope (ASI 2018)",,,,,,2018,Sept.
"S. Toyoda,T. Machida,Y. Tohjima,M. Sasakawa,S. Morimoto,K. Ishijima,N. Yoshida","Long-term trend of tropospheric N2O isotopocule ratios in the Northern Hemisphere","2018 Joint 14th iCACGP Quadrennial Symposium/15th IGAC Science Conference",,,,,,2018,Sept.
"Fu-Jun Yue,Si-Liang Li,Cong-Qiang Liu,Khan M.G. Mostofa,Naohiro Yoshida,Sakae Toyoda,Shohei Hattori,Xiao-Long Liu,Shi-Lu Wang","The spatial variation of nitrogen cycle in subtropical stratified dam lake in SW China, elucidated by nitrous oxide isotopomer and nitrate isotopes,",,"Inland Waters",,"Vol. 8",,"pp. ?186-195",2018,Aug.
"Ostrom N. E.,Gandhi H.,Coplen T. B.,Toyoda S.,B?hlke J. K.,Brand W. A.,Casciotti K. L.,Dyckmans J.,Giesemann A.,Mohn J.,Well R.,Yu L.,Yoshida N.","Preliminary assessment of stable nitrogen and oxygen isotopic composition of USGS51 and USGS52 nitrous oxide reference gases and perspectives on calibration needs.",,"Rapid Commun. Mass Spectrom.",,"Vol. 32",,"pp. 1207-1214",2018,Aug.
"Hyodo Ayumi,Malghani Saadat,Zhou Yong,Mushinski Ryan M.,Toyoda Sakae,Yoshida Naohiro,Boutton Thomas W,West Jason B","Does biochar amendment reduce N2O emissions by stimulating the last step of denitrification? - A study using position-specific N isotopic composition","IsoEcol2018",,,,,,2018,July
"Naohiro YOSHIDA,Sakae TOYODA,Osamu YOSHIDA,Shuichi WATANABE","Isotopomer and Isotopologue Abundance of Nitrous Oxide in Mid and Deep Oceans for its Source and Sink Indicator","Asia Oceania Geosciences Society2018（AOGS2018)",,,,,,2018,June
"F. Hasebe,S. Aoki,S. Morimoto,Y. Inai,T. Nakazawa,S. Sugawara,C. Ikeda,H. Honda,H. Yamazaki,N. Komala,F. A. Putri,A. Budiyono,M. Soedjarwo,S. Ishidoya,S. Toyoda,T. Shibata,M. Hayashi,N. Eguchi,N. Nishi,M. Fujiwara,S.-Y. Ogino,M. Shiotani,T.: Sugidachi","Coordinated Upper-troposphere-to-stratosphere Balloon Experiment in Biak (CUBE/Biak)",,"B. Am. Meteorol. Soc.",,"Vol. 99","Number 6","p. 1213-1230",2018,June
"Nathaniel E. Ostrom,Hasand Gandhi,Tyler B. Coplen,Sakae Toyoda,J.K. Boehlke,Wili A. Brand,Karen L. Casciotti,Jens Dyckmans,Anette Giesemann,Joachim Mohn,Reinhard Well,Longfei Yu,Naohiro Yoshida","Preliminary assessment of stable nitrogen and oxygen isotopic composition of USGS51 and USGS52 nitrous oxide reference gases and perspectives on calibration needsJournal: Rapid Communications in Mass Spectrometry",,"Rapid Commun. Mass Spectrom.",,"Vol. 32",,"  1207-1214",2018,May
"Sarah S. Eggleston,Sakae Toyoda,Heiko Moossen,Christina Biasi,Tracey Jacksier,Longfei Yu,Naohiro Yoshida,Paul Brewer,Joachim Mohn","Development of new N2O reference materials for d15N, d18O and 15N","EGU General Assembly 2018",,,,,,2018,Apr.
"Mayuko Nakagawa,Keita Yamada,Sakae Toyoda,Kazuyuki Kita,Yasuhito Igarashi,Shingo Komatsu,Kentaro Yamada,Naohiro Yoshida","Characterization of hydrocarbons in aerosols and investigation of biogenic sources as a carrier of radiocesium isotopes",,"GEOCHEMICAL JOURNAL",,"Vol. 52","No. 2","p. 163-172",2018,Mar.
"Sakae Toyoda,Osamu Yoshida,Hiroaki Yamagishi,Ayako Fujii,Naohiro Yoshida,Syuichi Watanabe","Origin of nitrous oxide dissolved in deep ocean water deduced from concentration and isotopocule analyses","9th International Symposium on Isotopomers (ISI2018)",,,,,,2018,Mar.
"Takeshi Kinase,Kazuyuki Kita,Yasuhito Igarashi,Kouji Adachi,Kazuhiko Ninomiya,Atsushi Shinohara,Hiroshi Okochi,Hiroko Ogata,Masahide Ishizuka,Sakae Toyoda,keita Yamada,Naohiro Yoshida,Yuji Zaizen,Masao Mikami,Hiroyuki Demizu,Yuichi Onda","The seasonal variations of atmospheric 134,137Cs activity and possible host particles for their resuspension in the contaminated areas of Tsushima and Yamakiya, Fukushima, Japan",,"Progress in Earth and Planetary Science",,"Vol. 5","No. 1","p. 12",2018,Feb.
"S. Sugawara,S. Ishidoya,S. Aoki,S. Morimoto,T. Nakazawa,S. Toyoda,Y. Inai,F. Hasebe,C. Ikeda,H. Honda,D. Goto,F. A. Putri","Age and gravitational separation of the stratospheric air over Indonesia",,"Atmos. Chem. Phys.",,"Vol. 18",,"pp. 1819-1833",2018,Feb.
"Sakae Toyoda,Naohiro Yoshida,Shinji Morimoto,Shuji Aoki,Takakiyo Nakazawa,Satoshi Sugawara,Shigeyuki Ishidoya,Mitsuo Uematsu,Yoichi Inai,Fumio Hasebe,Chusaku Ikeda,Hideyuki Honda,Kentaro Ishijima","Vertical distributions of N2O isotopocules in the equatorial stratosphere",,"Atmospheric Chemistry and Physics",,"Vol. 18",,"pp. 833-844",2018,Jan.
"Kushi Kudo,keita Yamada,Sakae Toyoda,Naohiro Yoshida,Daisuke Sasano,Naohiro Kosugi,Masao Ishii,Hisayuki Yoshikawa,Akihiko Murata,Hiroshi Uchida,Shigeto Nishino","Spatial distribution of dissolved methane and its source in the western Arctic Ocean",,"Journal of Oceanography",,"Vol. 74",,"p. 305-317",2018,Jan.
"Koki Maeda,Sakae Toyoda,Laurent Philippot,Shohei Hattori,Keiichi Nakajima,Yumi Ito,Naohiro Yoshida","Relative contribution of nirK- and nirS- bacterial denitrifiers as well as fungal denitrifiers to nitrous oxide production from dairy manure compost",,"Environmental Science & Technology",,"Vol. 51","No. 24","pp. 14083−14091",2017,Nov.
"Daisuke Goto,Shinji Morimoto,Shuji Aoki,Satoshi Sugawara,Shigeyuki Ishidoya,Yoichi Inai,Sakae Toyoda,Hideyuki Honda,Gen Hashida,Takashi Yamanouchi,Takakiyo Nakazawa","Vertical Profiles and Temporal Variations of Greenhouse Gases in the Stratosphere over Syowa Station, Antarctica",,"SOLA",,"Vol. 13",,"pp. 224-229",2017,Nov.
"豊田栄,吉田尚弘,森本真司,稲飯洋一,青木周司,中澤高清,菅原敏,石戸谷重之,後藤大輔,本田秀之,池田忠作,石島健太郎","日本および南極上空における成層圏N2O isotopoculeの高度分布とその変動","第23回大気化学討論会",,,,,,2017,Oct.
"豊田栄,柿本崇人,Florian Breider,工藤久志,吉田尚弘,笹野大輔,小杉如央,石井雅男,亀山宗彦,稲川満穂,吉川久幸,西野茂人,村田昌彦","西部北極海における溶存 N20 濃度およびアイソトポキュル比の時空間分布","2017年度日本地球化学会年会",,,,,,2017,Sept.
"工藤久志,豊田栄,山田桂太,吉田尚弘,小杉如央,笹野大輔,石井雅男,吉川久幸,村田昌彦,内田裕,西野茂人","2012 年と 2013 年の夏季の西部北極海における溶存メタンの起源解析","2017年度日本地球化学会年会",,,,,,2017,Sept.
"中川麻悠子,大八木英夫,丹佑太,豊田栄,吉田尚弘","成層湖における季節及び深度毎の微生物相変化による炭素循環への影響","2017年度日本地球化学会年会",,,,,,2017,Sept.
"Nguyen Cong Thuan,Keisuke Koba,Midori Yano,Akiko Makabe,Co Thi Kinh,Akihiko Terada,Sakae Toyoda,Naohiro Yoshida,Yotaro Tanaka,Masanori Katsuyama,Muneoki Yoh","N2O production by denitrification in an urban river: evidence from isotopes, functional genes, and dissolved organic matter",,"Limnology",,"Vol. 19",,"pp. 115-126",2017,June
"豊田栄,渡辺由羽馬,町田敏暢,遠嶋康徳,笹川基樹,森本真司,ダグ  ワーシー,石島健太郎,吉田尚弘","北半球大気中N2Oのアイソトポキュル比の最近の経年変動","日本地球惑星科学連合大会2017",,,,,,2017,May
"Chisato Yoshikawa,笹井儀一,真壁明子,Breider Florian,Sakae Toyoda,松井洋平,Shinsuke Kawagucci,脇田昌栄,藤木徹一,原田尚美,NAOHIRO YOSHIDA","Development of a model of nitrous oxide in the western North Pacific","日本地球惑星科学連合大会2017",,,,,,2017,May
"西岡拓哉,北 和之,林菜穂,佐藤武尊,五十嵐 康人,足立 光司,財前祐二,豊田 栄,山田 桂太,吉田 尚弘,牧 輝弥,石塚 正秀,二宮 和彦,篠原 厚,大河内 博,阿部 善也,中井 泉,川島洋人,古川 純,羽田野裕子,恩田 裕一","夏季-秋季における放射性セシウム大気再飛散のメカニズム","日本地球惑星科学連合大会2017",,,,,,2017,May
"Kazuki Kamezaki,Shohei Hattori,Takahiro Ogawa,Sakae Toyoda,Hiromi Kato,Yoko Katayama,Naohiro Yoshida","Sulfur isotopic fractionation of carbonyl sulfide during degradation by soil bacteria and enzyme","EGU2017","EGU General Assembly Conference Abstracts",,"Vol. 19",,"pp. 3974",2017,Apr.
"Sakae Toyoda,Shinji Morimoto,Shuji Aoki,Takakiyo Nakazawa,Satoshi Sugawara,Shigeyuki Ishidoya,Mitsuo Uematsu,Yoichi Inai,Fumio Hasebe,Chusaku Ikeda,Hideyuki Honda,Kentaro Ishijima","Vertical distributions of N2O isotopocules in the equatorial stratosphere","ISI2016",,,,,,2016,Oct.
"豊田栄,渡辺由羽馬,吉田 尚弘,町田敏暢,遠嶋 康徳,石島 健太郎,森本真司,Doug Worthy","北半球における対流圏N2O アイソトポキュル比の経年変化","日本地球化学会年会2016",,,,,,2016,Sept.
"渡辺由羽馬,豊田栄,吉田尚弘,島田智亮,青木周司,森本真司,中澤高清,菅原敏,石戸谷重之,本田秀之,池田忠作,井筒直樹,吉田哲也","日本上空の成層圏におけるN2O アイソトポキュル比の高度分布","日本地球化学会年会2016",,,,,,2016,Sept.
"柿本嵩人,豊田栄,吉田尚弘,小杉如央,笹野大輔,石井雅男,亀山宗彦,稲川満穂実,吉川久幸,西野茂人,村田昌彦","安定同位体を用いた北極海におけるN2O 生成・消滅過程の解析","日本地球化学会年会2016",,,,,,2016,Sept.
"Kita.K,Kinase.T,Igarashi.Y,Adachi.K,Yamada.K,Toyoda.S,Yoshida.N,Ninomiya?K,Shinohara?A,Okochi.H,Ishizuka.M,Maki.T,Abe.Y,Nakai.I,Furukawa.J,?Onda.Y","Re-suspension Processes of Radioactive Cs Emitted by the FNDPP Accident in Summer and Autumn ? Possibility of Biosphere-Atmosphere Circulation of Radioactive Cs","Goldschmidt2016",,,,,,2016,June
"Kudo.K,Toyoda.S,Yamada.K,Yoshida.N,Sasano.D,Kosugi.N,Ishii.M,Yoshikawa.H,Murata.A,Uchida.H,Nishino.S","Spacial Distribution of Dissolved Methane in the Western Arctic Ocean","Goldschmidt2016",,,,,,2016,June
"Toyoda.S,Matsushima.S,Makabe.?A,Nunoura.T,Yoshikawa.C,?Yoshida.N","Isotopic Analyses of Dissovled N2O and Nitrite in the Subarctic North Pacific","Goldschmidt2016",,,,,,2016,June
"豊田栄,吉田尚弘","インドネシア上空成層圏におけるCO2とSF6の濃度","日本地球惑星科学連合大会",,,,,,2016,May
"山田 桂太,豊田 栄,吉田 尚弘","夏/秋季における大気中の放射性セシウムの再飛散過程?生物―大気循環の可能性","日本地球惑星科学連合大会",,,,,,2016,May
"豊田栄,吉田尚弘","インドネシア上空成層圏において観測された大気主成分の拡散分離","日本地球惑星科学連合大会",,,,,,2016,May
"M. Nakagawa,O. Yagi,Y. Tan,S. Toyoda,K. Yamada,N. Yoshida","Seasonal change of particulate organic carbon isotopic ratios and high production in anaerobic layer in the monomictic lake, waku-ike (Nagano Prefecture)","IsoEcol2016",,,,,,2016,Apr.
"Thuan,Nguyen Cong,Keisuke Koba,Midori Yano,Akiko Makabe,Co Thi Kinh,Akihiko Terada,Sakae Toyoda,Naohiro Yoshida,Yotaro Tanaka,Masanori Katsuyama,Muneoki Yoh","Integrated approaches of N2/Ar measurement, stable isotopic and molecular techniques and investigating dissolved organic matter characteristics to evidence the denitrification in river","IsoEcol2016",,,,,,2016,Apr.
"Kazuki Kamezaki,Shohei Hattori,Takahiro Ogawa,Sakae Toyoda,Hiromi Kato,Yoko Katayama,Naohiro Yoshida","Sulfur isotopic fractionation of carbonyl sulfide during degradation by soil bacteria",,"Environmental science & technology",,"Vol. 50","No. 7","pp. 3537-3544",2016,Mar.
"Koki Maeda,Sakae Toyoda,Midori Yano,Shohei Hattori,Makoto Fukasawa,Keiichi Nakajima,Naohiro Yoshida","Isotopically enriched ammonium shows high nitrogen turnover in the pile top zone of dairy manure compost.",,"Biogeosciences",,"Vol. 12","No. 10","pp. 1341-1349",2016,Mar.
"豊田栄,吉田尚弘","北極域における大気中N2O isotopoculeの時空間分布","GRENE北極気候変動研究事業 研究成果報告会",,,,,,2016,Mar.
"Masahide Ishizuka,Masao Mikami,Taichu Y. Tanaka,Yasuhito Igarashi,Kazuyuki Kita,Yutaka Yamada,Naohiro Yoshida,Sakae Toyoda,Yukihiko Satou,Takeshi Kinase,Kazuhiko Ninomiya,Atsushi Shinohara","Use of a size-resolved 1-D resuspension scheme to evaluate resuspended radioactive material associated with mineral dust particles from the ground surface",,"Journal of Environmental Radioactivity",,"Vol. 166",,"pp. 436-448",2016,Feb.
"Shohei Hattori,Sakae Toyoda,Naohiro Yoshida","Sulfur isotopic analysis of carbonyl sulfide and its application for biogeochemical cycles","EGU2016",,,,,,2016,
"豊田栄,工藤久志,吉田尚弘","北極海における溶存メタンおよび一酸化二窒素の濃度と isotopoculeの分布","GRENE北極気候変動研究事業 研究成果報告会",,,,,,2016,
"豊田栄,吉田尚弘","赤道上空成層圏におけるN2O isotopocule比の高度分布","大気化学討論会2015",,,,,,2016,
"Kazuyuki Kita,Rie Kasahara,Misako Tanaka,Kaori Sato,Hiroyuki Demizu,Yasuhito Igarashi,Masao Mikami,Naohiro Yoshida,Sakae Toyoda,Haruo Tsuruta,Mitsuo Uematsu,Shogo Hgaki,Atsushi Shinohara,Akira Watanabe,Hisao Nagabayashi,Akihiro Yokoyama,Masayuki Takigawa,Satoshi Sugawara,Kiesuke Sueki,Yuichi Onda","Variation of atmospheric concentarations of I-131, Cs-134 and Cs-137 observed over eastren Japan: contribution of leakage from Fukushima Dai-ichi Nuclear Power Plant and secondary emission from soil and vegetation.","European Geoscience Union General Assembly 2013",,,,,,2016,
"Christine B. Wenk,Caitlin H. Frame,Keisuke Koba,Karen L. Casciotti,Mauro Veronesi,Helge Niemann,Carsten J. Schubert,Naohiro Yoshida,Sakae Toyoda,Akiko Makabe,Jakob Zopfi,Moritz F. Lehmann","Differential N2O dynamics in two oxygen-deficient lake basins revealed by stable isotope and isotopomer distributions",,"Limnology and Oceanography",,"Vol. 61",,"pp. 1735?1749",2016,
"Azzaya Tumendelger,Sakae Toyoda,Naohiro Yoshida,Hiroshi Shiomi,Rina Kouno","Isotopocule characterization of N2O dynamics during simulated wastewater treatment under oxic and anoxic conditions",,"Geochem. J.",,"Vol. 50",,"pp. 105-121",2016,
"Sakae Toyoda,Naohiro Yoshida","Development of automated preparation system for isotopocule analysis of N2O in various air samples",,"Atmos. Meas. Tech.",,"Vol. 9",,"pp. 2093-2101",2016,
"J. Mohn,W Gutjahr,S. Toyoda,E. Harris,E. Ibraim,H. Geilmann,P. Schleppi,T. Kuhn,M. F. Lehmann,C. Decock,R.A. Werner,Naohiro Yoshida,W.A. Brand","Reassessment of the NH4NO3 thermal decomposition technique for calibration of the N2O isotopic composition",,"Rapid Commun. Mass Spectrom.",,"Vol. 30",,"pp. 2487-2496",2016,
"Muhammad Ali,Rathnayake M.L.D. Rathnayake,Lei Zhang,Satoshi Ishii,Tomonori Kindaichi,Hisashi Satoh,Sakae Toyoda,Naohiro Yoshida,Satoshi Okabe","Source identification of nitrous oxide emission pathways from a single-stage nitritation-anammox granular reactor",,"Water Research",,"Vol. 102",,"pp. 147-157",2016,
"Shohei Hattori,Savarino, J.,Kamezaki, K.,Ishino, S.,Dyckmans, J.,Fujinawa, T.,Caillon, N.,Barbero, A.,Mukotaka, A.,Sakae Toyoda,Well, R.,Naohiro Yoshida","Automated system measuring triple oxygen and nitrogen isotope ratios in nitrate using the bacterial method and N2O decomposition by microwave discharge",,"Rapid Communications in Mass Spectrometry",,"Vol. 30","No. 24","pp. 2635-2644",2016,
"Toyoda, S.,N. Yoshida","Spacio-temporal distributions of atmospheric nitrous oxide and its isotopocules in the Arctic region","第6回極域科学シンポジウム",,,,,,2015,Nov.
"吉田尚弘,豊田 栄,山田桂","福島第一原子力発電所事故により放出された放射性セシウムの大気再飛散と植生との関係","大気化学討論会2015",,,,,,2015,Oct.
"豊田 栄,吉田 尚弘","大気中一酸化二窒素の同位体分子種（isotopocule）の長期観測","日本気象学会2015年度秋季大会",,,,,,2015,Oct.
"亀崎和輝,服部祥平,小川貴弘,石野咲子,豊田栄,加藤広海,片山葉子,吉田尚弘","白鳳丸KH-13-7次航海で採取されたエアロゾル試料中オキシアニオンの酸素同位体異常(Δ17O)","大気化学討論会2015",,,,,,2015,Oct.
"亀崎和輝,服部祥平,小川貴弘,石野咲子,豊田栄,吉田尚弘","硫化カルボニル微生物分解時の硫黄同位体分別とその大気化学への応用","日本地球化学会第62回年会",,,,,,2015,Sept.
"豊田栄,吉田尚弘","種々の大気試料中N2Oのisotopocule比測定用自動前処理装置の開発","日本地球化学会第62回年会",,,,,,2015,Sept.
"吉田 尚弘,丹佑太,豊田栄,中川麻悠子","溶存・懸濁態炭素に着目した温度成層湖である涌池の好気・嫌気環境における炭素循環の解析","日本陸水学会第80回大会",,,,,,2015,Sept.
"豊田栄,吉田尚弘","北太平洋亜寒帯域における亜硝酸塩同位体比を用いたN2O生成過程の解析","日本地球化学会第62回年会",,,,,,2015,Sept.
"豊田栄,吉田尚弘","海洋生態系?同位体分子種モデルを用いた西部北太平洋におけるN2O生成プロセスの解明","日本地球化学会第62回年会",,,,,,2015,Sept.
"Sakae Toyoda,Keita Yamada,Naohiro Yoshida","Continuous measurements of xCO2 and xCH4 in the seawater and overlying air in the western Arctic Ocean","The 18th WMO/IAEA Meeting on Carbon Dioxide, Other Greenhouse Gases, and Related",,,,,,2015,Sept.
"亀崎 和輝,服部 祥平,小川 貴弘,石野 咲子,豊田 栄,Hiromi Kato,Yoko Katayama,吉田 尚弘","Sulfur isotopic fractionation in carbonyl sulfide during microbial degradation","日本地球惑星科学連合2015 年大会",,,,,,2015,May
"Yun Zou,Yuhei Hirono,Yosuke Yanai,Shohei Hattori,Toyoda,Naohiro Yoshida","Rainwater, soil water, and soil nitrate effects on oxygen isotope ratios of nitrous oxide produced in a green tea (Camellia sinensis) field in Japan",,"Rapid Communications in Mass Spectrometry",,"Vol. 29","No. 9","pp. 891-900",2015,May
"S. Toyoda,K. Kudo,N. Yoshida","Relationship between CH4 and CO2 in the surface seawater in the western Arctic Ocean","The 4th International Symposium on the Arctic Research",,,,,,2015,Apr.
"S Toyoda,Naohiro Yoshida,K. Koba","Isotopocule analysis of biologically produced nitrous oxide in various environments",,"Mass Spectrometry Reviews",,"Vol. Volume 36","No. 2","pp. 135-160",2015,Apr.
"工藤久志,豊田栄,山田桂太,吉田尚弘,笹野大輔,小杉如央,石井雅男,吉川久幸,村田昌彦,内田裕,西野茂人","融氷期から結氷初期にかけての西部北極海における溶存メタンの水平・鉛直分布","日本海洋学会春季大会",,,,,,2015,Mar.
"Chisato Yoshikawa,Hitomi Abe,MakiN Aita,Florian Breider,Keichi Kuzunuki,Sakae Toyoda,NanakoO Ogawa,Hisami Suga,Naohiko Ohkouchi,SebastianO Danielache,Masahide Wakita,MakioC Honda,Naohiro Yoshida","Insight into nitrous oxide production processes in the western North Pacific based on a marine ecosystem isotopomer model",,"J Oceanogr",,,,"pp. 1-18",2015,
"Shohei Hattori,Akari Toyoda,Sakae Toyoda,Sakiko Ishino,Yuichiro Ueno,Naohiro Yoshida","Determination of the Sulfur Isotope Ratio in Carbonyl Sulfide Using Gas Chromatography/Isotope Ratio Mass Spectrometry on Fragment Ions 32S+, 33S+, and 34S+",,"Analytical Chemistry",,"Vol. 87","No. 1","pp. 477-484",2015,
"Ishijima, K.,Takigawa, M.,Sudo, K.,Sakae Toyoda,Naohiro Yoshida,R?ckmann, T.,Kaiser, J.,Aoki, S.,Morimoto, S.,Sugawara, S.,Nakazawa, T.","Development of an atmospheric N2O isotopocule model and optimization procedure, and application to source estimation",,"Atmospheric Chemistry and Physics Discussions",,"Vol. 15","No. 14","pp. 19947-20011",2015,
"S. Toyoda,K. Kudo,F. Breider,K. Yamada,N. Yoshida,D. Sasano,N. Kosugi,M. Ishii,H. Yoshikawa-Inoue,S. Nishino,H. Uchida,A. Murata","Distributions of methane, nitrous oxide, and their isotopomers in the Arctic Ocean","第5回極域科学シンポジウム",,,,,,2014,Dec.
"北和之,田中美佐子,木名瀬 健,山口隆亮,田村匠,木野日美子,出水宏幸,五十嵐康人,三上正男,足立光司,篠原厚,二宮和彦,大河内洋,石塚正秀,川島 洋人,中井泉,阿部善也,渡邊明,鶴田治雄,恩田裕一,吉田尚弘,豊田栄,山田 桂太","福島において観測された大気放射性セシウムの再飛散と季節変動","第20回大気化学討論会",,,,,,2014,Oct.
"豊田栄,町田敏暢,遠嶋康徳,石島健太郎,吉田尚弘","西シベリア上空における対流圏N2Oアイソトポマー比の経年変化","日本地球化学会第61回年会",,,,,,2014,Sept.
"K. Ishijima,S. Toyoda,M. Takigawa,K. Sudo,T. Nakazawa,S. Aoki,S. Morimoto,S. Sugawara,T. R?ckmann,J. Kaiser,N. Yoshida","Temporal and hemispheric variations of atmospheric N2O isotopes deduced from model simulation","ISI2014",,,,,,2014,July
"K. Kudo,S. Toyoda,K. Yamada,N. Yoshida,D. Sasano,N. Kosugi,M. Ishii,H. Yoshikawa,A. Murata,H. Uchida,S. Nishino","Horizontal and vertical distribution of methane concentration and stable isotope ratio of methane dissolved in the Arctic Ocean of MR12-E03 cruise","ISI2014",,,,,,2014,July
"K. Kuzunuki,N. Yoshida,S. Toyoda,M. Moriuchi,K. Minamisawa","Characterization of isotopomer ratio of N2O produced by fungi","ISI2014",,,,,,2014,July
"A. Tumendelger,S. Toyoda,N. Yoshida","Source identification of N2O produced during conventional wastewater treatment under different oxygen conditions using isotopomer ratios","ISI2014",,,,,,2014,July
"K. Yamada,K.  Ohishi,A. Gilbert,M. Akasaka,S. Toyoda,N. Yoshida,R. Yoshimura","Variations in carbon isotope ratio of acetone in urine","ISI2014",,,,,,2014,July
"Masahide Ishizuka,Masao Mikami,Taichu Tanaka,Yasuhito Igarashi,Kazuyuki Kita,Yutaka Yamada,Naohiro Yoshida,Sakae Toyoda,Yukihiko Satou,Yoshio Takahashi,Kazuhiko Ninomiya,Atsushi Shinohara","Radioactivity resuspension by dust emission using a size-resolved 1-D vertical model in Namie, Fukushima","Asia Oceania Geosciences Society 11th Annual Meeting",,,,,,2014,July
"Kazuyuki Kita,Misako Tanaka,Takeshi Kinase,HImiko Kino,Yasuhito Igarashi,Masao Mikami,Kouji Adachi,Hiroshi Okochi,Naohiro Yoshida,Sakae Toyoda,Keita Yamada,Hiroto Kawashima,Masahide Ishizuka,Izumi Nnakai,Yoshinari,Kazuhiko Ninomiya,Atsushi Shinohara,Yuichi Onda","Re-suspension of radioactive cesium in Fukushima","Asia Oceania Geosciences Society 11th Annual Meeting",,,,,,2014,July
"S. Toyoda,K. Yamada,N. Yoshida","Isotopomer ratios of N2O emitted from biomass burning","ISI2016",,,,,,2014,July
"S. Hattori,A. Toyoda,S. Toyoda,S. Ishino,Y. Ueno,N. Yoshida","Determination of sulfur isotopic composition of carbonyl sulfide in GC-IRMS using fragmentation ions 32S, 33S and 34S","ISI2014",,,,,,2014,July
"S. Toyoda,N. Yoshida","Origin and fluxes of nitrous oxide in Western North Pacific: controls and potential consequences of ocean acidification","ISI2014",,,,,,2014,July
"Y. Zou,S. Hattori,S. Toyoda,N. Yoshida","Oxygen isotope of nitrous oxide as affected by rainwater, soil water and soil nitrate: Examination in a green tea (Camellia sinensis) field in Japan","ISI2014",,,,,,2014,July
"M. Akasaka,K. Yamada,A. Gilbert,S. Toyoda,N. Yoshida","Determination of intramolecular carbon isotope distribution of acetone by sealed tube pyrolysis","ISI2014",,,,,,2014,July
"T. Fujinawa,S. Toyoda,N. Yoshida","Development of a method for the accurate determination of N and O isotope ratios for NO","ISI2014",,,,,,2014,July
"J. Mohn,B. Wolf,S. Toyoda,C.-T. Lin,M.-C. Liang,N. Br?ggemann,H. Wissel,A. E. Steiker,J. Dyckmans,L. Szwec,N. E. Ostrom,K. Casciotti,M. Forbes,A. Giesemann,R. Well,R. R. Doucett,C. T. Yarnes,A. R. Ridley,J. Kaiser,N. Yoshida","Inter-laboratory assessment of nitrous oxide isotopomer analysis by isotope ratio mass spectrometry and laser spectroscopy: current status and perspectives","ISI2014",,,,,,2014,July
"C. Yoshikawa, A.,S. Toyoda,N. Yoshida","Nitrogen cycle in the subtropical South Pacific deduced from nitrogen isotope ratio of nitrate and N* anomaly","ISI2014",,,,,,2014,July
"M. Yano,S. Toyoda,A. Makabe,N. Yoshida","Effect of flood irrigation on production and soil-to-atmosphere emission processes of nitrous oxide from paddy fields","ISI2014",,,,,,2014,July
"吉田 尚弘,豊田 栄","福島県浪江町津島地区における粒径別鉛直一次元モデルを用いたダスト粒子による放射性物質の再浮遊の推定","日本地球惑星科学連合2014年大会",,,,,,2014,May
"吉田 尚弘,豊田 栄,山田 桂太","福島県浪江町で観測された大気放射能濃度と、エアロゾル組成との関係の推定","日本地球惑星科学連合2014年大会",,,,,,2014,May
"吉田 尚弘,豊田 栄,山田 桂太","放射性セシウムの大気再飛散と気象条件の関係","日本地球惑星科学連合2014年大会",,,,,,2014,May
"Naohiro Yoshida,Sakae Toyoda,Keita Yamada","Multi-isotopic observation of N2O and CH4 in stations, including Hateruma.","49th Meeting of AGAGE Scientists and Cooperating Networks",,,,,,2014,Apr.
"吉田 尚弘,豊田 栄,山田 桂太","Multi-isotopic observation of N2O and CH4 in stations, including Hateruma","49th Meeting of AGAGE Scientists and Cooperating Networks",,,,,,2014,Apr.
"工藤久志,山田佳大,豊田 栄,吉田尚弘,笹野大輔,小杉如央,石井雅男,吉川久幸,村田昌彦・内田裕,西野茂人","「みらい」MR12-E03航海における北極海溶存メタンの濃度の水平・鉛直分布","日本海洋学会2014年度春季大会",,,,,,2014,Mar.
"豊田朱梨,服部祥平,豊田栄,石野咲子,吉田尚弘","硫化カルボニルの安定硫黄同位体比測定法の開発と大気試料への適用","日本海洋学会2014年度春季大会",,,,,,2014,Mar.
"北 和之,田中 美佐子,木名瀬 健,藤澤 遥,山口 隆亮,木野 日美子,出水 宏幸,五十嵐 康人,三上 正男,足立 光司,吉田尚弘,豊田栄,山田 桂大,渡邊 明,鶴田 治雄,長林 久夫,篠原 厚,二宮 和彦,大河内 洋,石塚 正秀,川島 洋人,大越 聡,佐藤 睦人,恩田 裕一","放射性物質の土壌と森林からの再飛散",,"大気環境学会誌","公益社団法人 大気環境学会","Vol. 49","No. 6","pp. A91-A92",2014,
"Satoshi Ishii,Yanjun Song,Lashitha Rathnayake,Azzaya Tumendelger,Hisashi Satoh,Sakae Toyoda,Naohiro Yoshida,Satoshi Okabe","Identification of key nitrous oxide production pathways in aerobic partial nitrifying granules",,"Environmental Microbiology",,"Vol. 16","No. 10","pp. 3168-3180",2014,
"服部祥平,豊田 朱梨,豊田栄,石野 咲子,上野雄一郎,吉田尚弘","フラグメンテーション法を用いた硫化カルボニルの硫黄同位体計測法：測定法とその応用",,"日本地球化学会年会要旨集","日本地球化学会","Vol. 61",,"pp. 225",2014,
"小松慎吾,吉田尚弘,五十嵐康人 北和之,大河内博,緒方裕子,山田桂太,豊田栄,山之越理恵","福島県内における放射性エアロゾル中の炭化水素類の分析","第19回大気化学討論会",,,,,,2013,Nov.
"Arata Mukotaka,Sakae Toyoda,Naohiro Yoshida,Reinhard Well","On-line triple oxygen isotope analysis of nitrous oxide using decomposition by microwave discharge",,"Rapid communications in mass spectrometry",,"Vol. 27","No. 21","pp. 2391-2398",2013,Nov.
"豊田栄,森本真司,稲飯洋一,青木周司,本田秀之,菅原敏,石戸谷重之,中澤高清,吉田尚弘","成層圏におけるN2Oアイソトポマー比の緯度・高度分布","第19回大気化学討論会",,,,,,2013,Nov.
"石島健太郎,豊田 栄,滝川雅之,須藤健悟,青木修司,中澤高清,吉田尚弘","大気中一酸化二窒素同位体の全球モデリング","2013年日本地球化学会第60回年会","2013年日本地球化学会第60回年会講演要旨集",,,,"p. 49",2013,Sept.
"笹野大輔,石井雅男,小杉如央,豊田 栄,山田桂太,工藤久志,吉田尚弘,吉川久幸,三船尊久,川合美千代,村田昌彦,内田 裕,西野茂人,菊池 隆","北極海表面で観測された高濃度CH4およびCO2との関連性","2013年日本地球化学会第60回年会","2013年日本地球化学会第60回年会講演要旨集",,,,"p. 239",2013,Sept.
"Florian Breider,Chisato Yoshikawa,Sakae Toyoda,Naohiro Yoshida","Assessing the effects of ocean acidification on nitrous oxide production using stable isotopes and isotopomers analysis","ICoN3",,,,,,2013,Sept.
"Midori Yano,Sakae Toyoda,Takeshi Tokida,Kentaro Hayashi,Toshihiro Hasegawa,Hirohumi Nakamura,Akiko Makabe,Keisuke Koba,Naohiro Yoshida","Large contributions of nitrification and fungal denitrification in N2O productions in drained paddy fields exposed to CO2 of current and future atmospheric concentrations","ICoN3",,,,,,2013,Sept.
"Arata Mukotaka,Sakae Toyoda,Naohiro Yoshida","Nitrogen and oxygen isotopic composition of atmospheric nitrate near the highways","Goldschmidt 2013",,,,,,2013,Aug.
"Yun Zou,Yuhei Hirono,Yosuke Yanai,Shohei Hattori,Sakae Toyoda,Naohiro Yoshida","Concentration and isotopic analysis of soil gas N2O in a Japanese tea field","Goldschmidt 2013",,,,,,2013,Aug.
"向高 新,豊田 栄,吉田尚弘","マイクロ波放電分解法による硝酸塩の酸素同位体測定法の開発",,"化学工業",,"Vol. 64","No. 7","pp. 59-63",2013,July
"豊田 栄,藤井彩子,吉田尚弘,山岸洋明,吉田 磨,渡邉修一","濃度および同位体比の分布から推定される海洋における溶存一酸化二窒素の起源","JpGU Meeting 2013",,,,,,2013,May
"石塚 正秀,三上 正男,田中 泰宙,五十嵐 康人,北 和之,吉田尚弘,豊田栄,篠原 厚","P183 地表面から飛散したダスト粒子による再浮遊放躰性物質の一次元推定(ポスター・セッション)",,"大会講演予講集","日本気象学会","Vol. 104",,"pp. 267",2013,
"Sake Toyoda,Kentaro Ishijima,Yasunori Tohjima,Toshinobu Machida,Sakae Toyoda,Natsuko Kuroki,Naohiro Yoshida,Kentaro Ishijima,Yasunori Tohjima,Toshinobu Machida","Decadal time siries 1 of tropospheric abundance of N2 isotopomers and 2 isotopologues in the northern hemisphere obtained by the long-term 3 observation at Hateruma Island, Japan",,"Journal of Geophysical Research: Atmospheres",,"Vol. 118",,"pp. 3369?3381",2013,
"Ayako Fujii,Sakae Toyoda,Osamu Yoshida,Shuichi Watanabe,Kenichi Sasaki,Naohiro Yoshida","Distribution of nitrous oxide dissolved in water masses in the eastern subtropical North Pacific and its origin inferred from isotopomer analysis",,"J Oceanography",,"Vol. 69",,"pp. 47-157",2013,
"Midori Yano,Sakae Toyoda,T. Tokida,K. Hayashi,T. Hasegara,A. Makabe,Keisuke Koba","Isotopomer analysis of production, consumption and soil-to-atmosphere emission processes of N2O at the beginning of paddy field irrigation",,"Soil Biology & Biochemistry",,,,,2013,
"Antra Priyadarshi,Jason Hill-Falkenthal,Mark Thiemens,Naohiro Yoshida,Sakae Toyoda,Keita Yamada,Arata Mukotaka,Ayako Fujii,Mitsuo Uematsu,Shiro Hatakeyama,Izumi Noguchi,Yukihiro Nojiri,Hiroshi Tanimoto","Detection of radioactive 35S at Fukushima and other Japanese sites",,"Journal of Geophjsical Research: Atmospheres",,"Vol. 118",,"  1020?1027",2013,
"北 和之,田中 美佐子,佐藤 かおり,木名瀬 健,出水 宏幸,五十嵐 康人,三上 正男,吉田尚弘,豊田栄,山田 桂大,篠原 厚,川島 洋人,大河内 博,恩田 裕一","P432 福島第一原子力発電所事故により放出された放射性セシウムの大気再飛散メカニズムと飛散係数推定(ポスター・セッション)",,"大会講演予講集","日本気象学会","Vol. 103",,"pp. 409",2013,
"T. Kato,Sakae Toyoda,Naohiro Yoshida,Y. Tang,Eitaro Wada","Isotopomer and isotopologue signatures of N2O produced in alpine ecosystems on the Qinghai?Tibetan Plateau",,"Rapid Communications in Mass Spectrometry",,"Vol. 27","No. 13","pp. 1517?1526",2013,
"阿部 瞳,吉川 知里,相田（野口 ）真希,豊田 栄,吉田 尚弘","窒素安定同位体を用いた海洋一酸化二の 生成過程の解明","2012年度年日本地球化学会第59回年会","2012年度年日本地球化学会第59回年会講演要旨集","日本地球化学会",,,"p. 117",2012,Sept.
"向高 新,豊田 栄,吉田尚弘","植物葉上に蓄積した硝酸の同位体的特徴と森林における窒素循環解析への適用","2012年度年日本地球化学会第59回年会","2012年度年日本地球化学会第59回年会講演要旨集","日本地球化学会",,,"p. 259",2012,Sept.
"Azzaya Tumendelger,Sakae Toyoda,Naohiro Yoshida","Analysis of production and consumption mechanisms of N2O during standard wastewater treatment using isotopomer ratios","2012年度年日本地球化学会第59回年会","2012年度年日本地球化学会第59回年会講演要旨集","日本地球化学会",,,"p. 258",2012,Sept.
"石島健太郎,Prabir Patra,滝川雅之,須藤健悟,町田敏伸,松枝秀和,澤 庸介,青木周司,中澤高清,豊田 栄,吉田尚弘,遠嶋康徳,伊藤昭彦","大気中一酸化二窒素の全球モデリング","2012年度年日本地球化学会第59回年会","2012年度年日本地球化学会第59回年会講演要旨集","日本地球化学会",,,"p. 301",2012,Sept.
"Naohiro Yoshida,Zou Yun,Yuhei Hirano,Yosuke Yanai,○Shohei Hattori,Sakae Toyoda,Naohro Yoshida","Vertical distribution of concentration and isotopomer ratios of N2O in tea field in shizuoka, japan",,"2012年度年日本地球化学会第59回年会講演要旨集","日本地球化学会",,,"p. 257",2012,Sept.
"Akiko Makabe,Keisuke Koba,Chikage Yoshimizu,I.chiro Tayasu,N. O. Ogawa,Naohiko Ohkouchi,Sakae Toyoda,Naohiro Yoshida,Toshi Nagata","Fate of atmospheric nitrate and nitrogen biogeochemical processes in Lake Biwa elucidated by multiple oxygen isotopes","2012 ASLO Aquatic Sciences Meeting",,,,,,2012,July
"Hitomi Abe,Chisato Yoshikawa,Maki Noguchi Aita,Sakae Toyoda,Naohiro Yoshida","A study of the marine nitrous oxide using an ecosystem model including nitrogen isotpes","2012 ASLO Aquatic Sciences Meeting",,,,,,2012,July
"Arata Mukotaka,Sakae Toyoda,Naohiro Yoshida,Reinhard Well","Triple oxygen isotope analysis of N2O using microwave discharge decomposition method","ISI2012",,,,,,2012,June
"Azzaya Tummendelger,Sakae Toyoda,Naohiro Yoshida","Isotopomer analysis of N2O production-consumption mechanisms in biological wastewater treatment under nitrifying and denitrifying conditions","ISI2012",,,,,,2012,June
"Yuhei Hirono,Yosuke Yanai,○Shohei Hattori,Yun Zou,Yuhei Hirono,Yosuke Yanai,Shohei Hattori,Sakae Toyoda,Naohiro Yoshida","Isotopomer analysis of N2O accumulated in tea field soil in Shizuoka, Central Japan","ISI2012",,,,,,2012,June
"Kentaro Ishijima,Sakae Toyoda,Masayuki Takigawa,Kengo Sudo,Takakiyo Nakazawa,Shuji Aoki,Thomas R?ckmann,Jan Kaiser,Chisato Yoshikawa,Shinkoh Nanbu,Naohiro Yoshida","Longterm simulation of tropospheric and stratospheric N2O isotopomers and its application to global budget estimations","ISI2012",,,,,,2012,June
"Sakae Toyoda,Natsuko Kuroki,Naohiro Yoshida,Kentaro Ishijima,Yasunori Tohjima,Toshinobu Machida","Decadal time series of tropospheric N2O isotopomer ratios in the northern hemisphere obtained by the long-term observation at Hateruma Island, Japan","ISI2012",,,,,,2012,June
"Keisuke Koba,Yunting Fang,Jiangming Mo,Wei Zhang,Xiankai Lu,Lei Liu,Tao Zhang,Yu Takebayashi,Sakae Toyoda,Naohiro Yoshida,Keisuke Suzuki,Muneoki Yoh,Keishi Senoo","The 15N natural abundance of the N lost from an N-saturated subtropical forest in southern China",,"Journal of Geophsical Research",,"Vol. 117",,,2012,May
"北 和之,笠原 理絵,出水宏幸,渡邊 明,鶴田 治雄,植松 光夫,桧垣 正吾,吉田 尚弘,豊田 栄,篠原 厚,五十嵐 康人,三上 正男,恩田 裕一,末木 啓介,滝川 雅之,長林 久夫,横山 明彦","福島原発事故後の東日本における大気放射能濃度の変化","日本地球惑星科学連合2012年度連合大会",,,,,,2012,May
"矢野 翠,豊田 栄,常田岳志,林健太郎,長谷川利拡,木庭啓介,吉田尚弘","アイソトポマー比を用いた水田入水時における一酸化二窒素生成、放出過程の解析","日本地球惑星科学連合2012年度連合大会",,,,,,2012,May
"トウメンデルゲル アゼザヤ,豊田栄,吉田尚弘","標準廃水処理でのN2Oの生成と消費の機理の解析",,"日本地球化学会年会要旨集","日本地球化学会","Vol. 59",,"pp. 251",2012,
"北 和之,田中 美佐子,佐藤 ゆかり,出水 宏幸,渡邊 明,鶴田 治雄,植松 光夫,桧垣 正吾,吉田尚弘,豊田栄,山田 桂大,篠原 厚,三上 正男,五十嵐 康人,恩田 裕一,末木 啓介,滝川 雅之,長林 久夫,横山 明彦,日本地球化学会=日本地球惑星科学連合=日本放射化学会連携緊急放射性物質サンプリングチーム大気班および分析班","3H0900-3 福島第一原発事故後の大気放射性物質の変動と土壌からの再飛散の影響(福島原発事故の環境影響調査結果とモニタリングの現状・将来について,特別集会4)",,"大気環境学会年会講演要旨集","大気環境学会",,"No. 53","pp. 108-109",2012,
"鄒 韻,廣野 祐平,柳井 洋介,服部祥平,豊田栄,吉田尚弘","静岡における茶園土壌のN2Oの濃度とアイソトポマの鉛直分布についての解析",,"日本地球化学会年会要旨集","日本地球化学会","Vol. 59",,"pp. 250",2012,
"Mohn, J.,B. Tuzson,A. Manninen,Naohiro Yoshida,Sakae Toyoda,W. A. Brand,L. Emmenegger","Site selective real-time measurements of atmospheric N2O isotopomers by laser spectroscopy",,"Atmos. Meas. Tech.",,"Vol. 5",,"pp. 1601-1609",2012,
"Naohiro Yoshida,Sakae Toyoda,Azzaya Tumendelger,Yuuri Suzuki,Keita Yamada,Shohei Hattori,Chen Wu,Hiroshi Shiom,Rina Kouno","Nitrous oxide and methane isotopomer analysis in wastewater treatment system in order to reduce their emissions without reduction of water quality","The 4th IWA-ASPIRE Conference & Exhibition",,,,,,2011,Oct.
"Azzaya Tumendelger,Sakae Toyoda,Naohiro Yoshida,Hiroshi Shiomi,Rina Kouno","Determination of isotopomer fractionation factors characteristic to nitrification and denitrification related to N2O in simulated wastewater treatment process","The 4th IWA-ASPIRE Conference & Exhibition",,,,,,2011,Oct.
"Sakae Toyoda,Yuuri Suzuki,Naohiro Yoshida","Hiroshi Shiomi and Rina Kouno, Comparison of production and consumption mechanisms of N2O between conventional and advanced wastewater treatment systems based on isotopomer analysis","The 4th IWA-ASPIRE Conference & Exhibition",,,,,,2011,Oct.
"Naizhong Zhang,Keita Yamada,Sakae Toyoda,Naohiro Yoshida,Shuji Aoki,Takakiyo Nakazawa,Satoshi Sugawara,Urumu Tsunogai,Daisuke Komatsu","Variations of the tropospheric and stratospheric 16O13C18O","第17回大気化学討論会",,,,,,2011,Oct.
"林えれな,山田桂太,吉川知里,吉田 磨,今井 翔,窪田千穂,豊田 栄,渡邉 拓,吉田尚弘","炭素・水素同位体を用いた亜熱帯南太平洋におけるメタンの生成消滅過程の解析","2011年度日本海洋学会秋季大会",,,,,,2011,Sept.
"豊田 栄,下島涼介,山田桂太,吉田尚弘","バイオマス燃焼で発生するN2O のアイソトポマー比","2011年度日本地球化学会","2011年度日本地球化学会要旨集","日本地球化学会",,,"p. 30",2011,Sept.
"セバスチアン ダニエラチェ,服部祥平,豊田栄,上野雄一郎,吉田尚弘","硫化カルボニルの光解離反応における波長依存同位体分別、その理論的な理解と大気への応用","2011年度日本地球化学会","2011年度日本地球化学会要旨集","日本地球化学会",,,"p. 207",2011,Sept.
"向高 新,豊田 栄,山田桂太,藤井彩子,吉田尚弘","マイクロ波放電分解法による硝酸塩の三種酸素同位体測定法の開発","2011年度日本地球化学会","2011年度日本地球化学会要旨集","日本地球化学会",,,"pp. 112",2011,Sept.
"Zou Yun,廣野祐平,柳井洋介,Shohei Hattori,Sakae Toyoda,NAOHIRO YOSHIDA","Isotopomer analysis of N2O production and consumption in a tea field amended with high fertilization","2011年度日本地球化学会要旨集","2011年度日本地球化学会要旨集","2011年度日本地球化学会要旨集",,,"p. 349",2011,Sept.
"鄒韻,廣野祐平,柳井洋介,服部祥平,豊田栄,吉田尚弘","多肥茶園土壌におけるN2O 生成と消減過程のアイソトポマー解析","2011年度日本地球化学会",,,,,,2011,Sept.
"矢野 翠,豊田 栄,林健太郎・常田岳志,松島未和,和穎朗太,南川和則,長谷川利拡,木庭啓介,吉田尚弘","高CO2条件下の水田土壌におけるN2O生成・消滅過程の同位体比を用いた解析","日本土壌肥料科学会2011年度つくば大会",,,,,,2011,Aug.
"山崎哲明,服部祥平,柳井洋介,豊田 栄,吉田尚弘","季節性凍結土に生じる一酸化二窒素のアイソトポマー解析","日本地球惑星科学連合2011年度連合大会",,,,,,2011,May
"Sakae Toyoda,Midori Yano,S. Nishimura,H. Akiyama,A. Hayakawa,Keisuke Koba,S. Sudo,K. Yagi,Akiko Makabe,Yoshifumi Tobari,N. O. Ogawa,Nao Ohkouch,Keita Yamada,Naohiro Yoshida","Characterization and production and consumption processes of N2O emitted from temperate agricultural aoils determined via isotopomer ratio analysis",,"Global Biogeochem. Cycles",,"Vol. 17",,,2011,May
"Koki Maeda,Dai Hanajima,Sakae Toyoda,Naohiro Yoshida,Riki Morioka,Takashi Osada","Microbiology of nitrogen cycle in animal manure compost",,"Microbial Biotechnology",,"Vol. 4","no. 6","pp. 700-709",2011,
"Shohei Hattori,Sebastian Danielache,Matthew Johnson,J. Schmidt,H. Kjaergaard,Sakae Toyoda,Yuichiro Ueno,Naohiro Yoshida","Ultraviolet absorption cross sections of carbonyl sulfide isotopologues OC32S, OC33S, OC34S and O13CS: isotopic fractionation in photolysis and atmospheric implications",,"Atmos. Chem. Phys.",,"Vol. 11",,"pp. 20487?20520",2011,
"Sasaki, Y.,Keisuke Koba,M. Yamamoto,Akiko Makabe,Yuichiro Ueno,Mayuko Nakagawa,Sakae Toyoda,Naohiro Yoshida,M. Yoh","Biogeochemistry of nitrous oxide in Lake Kizaki, Japan, elucidated by nitrous oxide isotopomer analysis",,"J. Geophys. Res.",,"Vol. 116",,"pp. 1-10",2011,
"菅原 敏,豊田栄,石戸谷 重之,森本 真司,橋田 元,青木 周司,中澤 高清,山内 恭,本田 秀之","クライオジェニックサンプラーを用いた昭和基地上空における成層圏大気中の温室効果気体観測",,"南極資料","国立極地研究所","Vol. 54",,"pp. 410-425",2010,Dec.
"Sakae Toyoda,Yuuri Suzuki,Shohei Hattori,Keita Yamada,Ayako Fujii,Naohiro Yoshida,Rinako Uno,Kouki Murayama,Hiroshi Shiomi","Isotopomer Analysis of Production and Consumption Mechanisms of N2O and CH4 in an Advanced Wastewater Treatment System",,"Environ. Sci. Technol.",,"Vol. 45","No. 3","pp. 917?922",2010,Dec.
"Akiko Makabe,Keisuke Koba,Chikage Yoshimizu,Ichiro Tayasu,Nanako O. Ogawa,Naohiko Ohkouchi,Sakae Toyoda,Toshi Nagata,Naohiro Yoshida","Oxygen isotopic composition of nitrous oxide produced in Lake Biwa","International Symposium on Isotope Ecology 2010 in Kyoto, COOP Inn Kyoto",,,,,,2010,Nov.
"Arata Mukotaka,Sakae Toyoda,Naohiro Yoshida","Triple oxygen isotope analysis of N2O using microwave-discharge decomposition method","Triple oxygen isotope analysis of N2O using microwave-discharge decomposition method",,,,,,2010,Nov.
"Tetsuaki Yamazaki,Shohei Hattori,Yosuke Yanai,Sakae Toyoda,Naohiro Yoshida","Isotopomer analysis of N2O emitted from a sesonally frozen soil","International Symposium: Technology and Policy for Low Carbon Society",,,,,,2010,Nov.
"豊田 栄,石島健太郎,吉川知里,吉田尚弘","N2Oアイソトポマー比データベース構築と全球化学輸送モデルへの適用","第16回大気化学討論会",,,,,,2010,Nov.
"服部祥平,上野雄一郎,SebastianDanielache,豊田 栄,中川麻悠子,ジョンソン S マット,吉田尚弘","硫化カルボニルの硫黄同位体比及び分解時同位体分別係数に着目した、成層圏硫酸エアロゾル生成過程の推定","第16回大気化学討論会",,,,,,2010,Nov.
"黒木奈都子,豊田 栄,町田敏暢,遠嶋康徳,高橋善幸,吉田尚弘","対流圏大気中N2Oのアイソトポマー比の分布と経年変動","第16回大気化学討論会",,,,,,2010,Nov.
"Koki Maeda,Dai Hanajima,Sakae Toyoda,Riki Morioka1,Takashi Osada","Microbiology of nitrogen cycle in animal manure compost",,"Microbial Biotechnology",,,,,2010,Oct.
"Koki Maeda,Sakae Toyoda,Ryosuke Shimojima,Takashi Osada,Dai Nanajima,Riki Morioka,Naohiro Yoshida","Nitrous oxide emission from cattle manure compost","Greenhouse Gases and Animal Agriculture Conference (GGAA2010)",,,,,,2010,Oct.
"Sakae Toyoda,Yuuri Suzuki,Shohei Hattori,Keita Yamada,Ayako Fujii,Naohiro Yoshida,Rina Kouno,Kouki Murayama,Hiroshi Shiomi","Isotopomer analysis of production/consumption mechanisms of nitrous oxide","ISI2010",,,,,,2010,June
"向高 新,豊田 栄,吉田尚弘","マイクロ波放電を利用したN2Oの三酸素同位体分析","日本地球惑星科学連合2010年大会",,,,,,2010,May
"Koki Maeda,Sakae Toyoda,Ryosuke Shimojima,Takashi Osada,Dai Hanajima,Riki Morioka,Naohiro Yoshida","Source of Nitrous Oxide Emissions during the Cow Manure Composting Process as Revealed by Isotopomer Analysis of and amoA Abundance in Betaproteobacterial Ammonia-Oxidizing Bacteria",,"Applied and Environmental Microbiology",,"Vol. 76","No. 5","pp. 1555-1562",2010,Jan.
"J. Mohn,C. Guggenheim,Bella Tuzson,M. K. Vollmer,Sakae Toyoda,Naohiro Yoshida,L. Emmenegger","A liquid nitrogen-free preconcentration unit for measurements of ambient N2O isotopomers by QCLAS",,"Atmos. Meas. Tech.",,"Vol. 3",,"  609?618",2010,
"Yoshifumi Tobari,Keisuke Koba,Keitaro Fukushima,Naoko Tokuchi,Nobuhito Ohte,Ryunosuke Tateno,Sakae Toyoda,Takahito Yoshioka,Naohiro Yoshida","Contribution of atmospheric nitrate to stream-water nitrate in Japanese coniferous forests revealed by oxygen isotope ratio of nitrate",,"Rapid Communications in Mass Spectrometry",,"Vol. 24",,"pp. 1-6",2010,
"渡辺 拓,服部祥平,豊田 栄,上野雄一郎,吉田尚弘","大気中の硫化カルボニルの硫黄同位体比測定法の開発","第15回大気化学討論会","第15回大気化学討論会講演要旨集","大気化学研究会",,,"p. 45",2009,Oct.
"豊田 栄,矢野 翠,早川 敦,秋山博子,西山誠一,須藤重人,木庭啓介,山田桂太,吉田尚弘","アイソトポマー比を用いた農耕土壌起源N２Oのキャラクタリゼーションおよび全球放出推定","第15回大気化学討論会","第15回大気化学討論会講演要旨集","大気化学研究会",,,"p. 22",2009,Oct.
"柴田裕樹,山田桂太,菊池麻希子,服部良太,豊田 栄,吉田尚弘","マイクロ固相抽出―ガスクロマトグラフィー同位体比質量分析法による揮発性有機化合物の水素安定同位体比解析","第15回大気化学討論会","第15回大気化学討論会講演要旨集","大気化学研究会",,,"p. 99",2009,Oct.
"石島健太郎,豊田 栄,吉川知里,須藤健悟,南部伸孝,青木周司,中澤高清,吉田尚弘","N２Oアイソトポマー化学輸送モデルの開発","第15回大気化学討論会","第15回大気化学討論会講演要旨集","大気化学研究会",,,"p. 64",2009,Oct.
"吉田 磨,今井 翔,河野 恒平,豊田 栄,窪田 千穂,藤井 彩子,山田 桂太,渡邉 修一,吉田 尚弘","太平洋WOCE-P01・P03・P21における溶存メタンの動態","日本地球化学会2009年会","日本地球化学会2009年会講演要旨集","日本地球化学会","Vol. 57",,"  337",2009,Sept.
"山田桂大,柴田裕樹,山田桂太,服部良太,豊田 栄,吉田尚弘","植物由来揮発性有機化合物のマイクロ固相抽出-ガスクロマトグラフィー同位体比質量分析法による炭素安定同位体比分析","日本地球化学会2009年会","日本地球化学会2009年会講演要旨集","日本地球化学会","Vol. 57",,"p. 237",2009,Sept.
"Wu Chen,Keita Yamada,Sakae Toyoda,Naohiro Yoshida,Rina Kono,Koki Murayama","Investigation of methane emission during sewage water treatment in Japan through carbon isotope ratio","日本地球化学会2009年会","日本地球化学会2009年会講演要旨集","日本地球化学会","Vol. 57",,"p. 260",2009,Sept.
"Keisuke Koba,K. Osaka,Yoshifumi Tobari,Sakae Toyoda,N. Ohte,Katsuyama,Suzuki,M. Itoh,H. Yamagishi,M. Kawasaki,S. Kim,Naohiro Yoshida,T. Nakajima","Biogeochemistry of nitrous oxide in roundwater in a forested ecosystem elucidated by nitrous oxide isotopomer measurements",,"Geochimica et Cosmochimica Acta,",,,,"  3115-3133",2009,June
"Sakae Toyoda,Hiroyuki Iwai,Keisuke Koba,Naohiro Yoshida","Isotopomeric analysis of N2O dissolved in a river in the Tokyo metropolitan area",,"Rapid Communications in Mass Spectrometry",,"Vol. 23",,"pp. 809-821",2009,Mar.
"在原悟,石島健太郎,吉川知里,豊田栄,滝川雅之,吉田尚弘","成層圏N2Oアイソトポマー分布のモデル計算および観測結果との比較","第１４回大気化学討論会","第１４回大気化学討論会講演要旨集","大気化学研究会",,,"p. 64",2008,Dec.
"Yota Kobayashi,Prosenjit Ghosh,Keita Yamada,Sakae Toyoda,Yuichiro Ueno,Naohiro Yoshida","Analysis of seasonal variation of mass 47-CO2 in urban air","4th International Symposium on Isotopomers","4th International Symposium on Isotopomers proceedings","ISI2008 Science Committee",,,"pp. 141-142",2008,Oct.
"Hiroki Shibata,Keita Yamada,Sakae Toyoda,Naohiro Yoshida","Isotopic characterization of molecular hydrogen emitted from automobile exhaust","4th International Symposium on Isotopomers","4th International Symposium on Isotopomers proceedings","ISI2008 Science Committee",,,"pp. 149-151",2008,Oct.
"Antra,Sakae Toyoda,Naohiro Yoshida","Investigation of oxygen and nitrogen isotope fractionation in N2O dissociation by electric discharge","4th International Symposium on Isotopomers","4th International Symposium on Isotopomers proceedings","ISI2008 Science Committee",,,"pp. 72-78",2008,Oct.
"Ayako Fujii,Sakae Toyoda,Naohiro Yoshida","Concentrations and isotopic characterics of nitrous oxide in the eastern subtropical  North Pacific Ocean","4th International Symposium on Isotopomers","4th International Symposium on Isotopomers proceedings","ISI2008 Science Committee",,,"pp. 83-85",2008,Oct.
"Yuji Sasaki,Keisuke Koba,Muneoki Yoh,Akiko Makabe,Yuichiro Ueno,Mayuko Nakagawa,Sakae Toyoda,Naohiro Yoshida","Nitrogen cycling in Lake Kizaki clucidated by isotopic analysis","4th International Symposium on Isotopomers","4th International Symposium on Isotopomers proceedings","ISI2008 Science Committee",,,"pp. 94-95",2008,Oct.
"Shou Imai,Sakae Toyoda,Ayako Fujii,Keita Yamada,Naohiro Yoshida","Distribution of Methane at WOCE-P01･P03 lines in the North Pacific","4th International Symposium on Isotopomers","4th International Symposium on Isotopomers proceedings","ISI2008 Science Committee",,,"pp. 176-182",2008,Oct.
"Chisato Yoshikawa,Ayako Fujii,Akiko Makabe,Yoshifumi Tobari,Sakae Toyoda,Naohiro Yoshida","Isotopic analysis of nitrate in the western equatorial Pacific","4th International Symposium on Isotopomers","4th International Symposium on Isotopomers proceedings","ISI2008 Science Committee",,,"pp. 192-194",2008,Oct.
"Sakae Toyoda,Midori Yano,Sei-ichi Nishimura,Keisuke Koba,Keita Yamada,Naohiro Yoshida","Isotopomeric analysis of N2O emitted from temperate agricultural soils","4th International Symposium on Isotopomers","4th International Symposium on Isotopomers proceedings","ISI2008 Science Committee",,,"pp. 202-205",2008,Oct.
"Kentaro Ishijima,Sakae Toyoda,Naohiro Yoshida","Three-dimensional model simulation of atmospheric nitrous oxide isotopes: comparison with balloon-observed profiles and estimation of the stratospheric effect on the surface","4th International Symposium on Isotopomers","4th International Symposium on Isotopomers proceedings","ISI2008 Science Committee",,,"pp. 210-211",2008,Oct.
"Antra,Sakae Toyoda,Naohiro Yoshida","A new method for ?17O measurement in N2O","4th International Symposium on Isotopomers","4th International Symposium on Isotopomers proceedings","ISI2008 Science Committee",,,"pp. 253-254",2008,Oct.
"Akiko Makabe,K. Koba,I. Tayasu,M. Itoh,N. O. Ogawa,S. Toyoda,N. Yoshida","Dynamics of nitrous oxide emitted from a sewage-polluted river in Mongolia","4th International Symposium on Isotopomers","4th International Symposium on Isotopomers proceedings","ISI2008 Science Committee",,,"pp. 195-196",2008,Oct.
"Tomohiro Miyafukuro,Sakae Toyoda,Naohiro Yoshida","Isotopomer analysis of N2O dynamics in the eastern North Pacific Ocean","4th International Symposium on Isotopomers","4th International Symposium on Isotopomers proceedings","ISI2008 Science Committee",,,"pp. 199-201",2008,Oct.
"Keisuke Koba,Yurika Isogai,Muneoki Yoh,Jiangming Mo,Sakae Toyoda,Naohiro Yoshida","Nitrogen dynamics in a sub-tropical forest in south China","4th International Symposium on Isotopomers","4th International Symposium on Isotopomers proceedings","ISI2008 Science Committee",,,"pp. 197-198",2008,Oct.