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Title
Japanese: 
English:Mossbauer study of contaminated soils by industrial activity in Paramonga city,Region Lima Provinces,Peru 
Author
Japanese: Angel Bustamante, Julio Fabian, Luis De Los Santos, C.H.W.Barnes, 真島 豊.  
English: Angel Bustamante, Julio Fabian, Luis De Los Santos, C.H.W.Barnes, Yutaka Majima.  
Language English 
Journal/Book name
Japanese: 
English:Hyperfine Interactions 
Volume, Number, Page Vol. 211        p. 147-151
Published date Mar. 6, 2012 
Publisher
Japanese: 
English:Springer 
Conference name
Japanese: 
English: 
Conference site
Japanese: 
English: 
DOI https://doi.org/10.1007/s10751-012-0591-x
Abstract In this work we characterize soils from the Paramonga city, Region Lima Provinces in Peru, which are contaminated by residual chemicals (Br, As and Sr) from sugar and paper industry in the city. Four samples were collected, labelled as S1, S2, S3 and S4 and analized by X-ray diffraction (XRD), energy-dispersive Xray fluorescence (EDXRF) and Mössbauer spectroscopy. For all the samples, thechemical analysis by EDXRF revealed the presence of Fe, Mn, Cu, Zn, K, Br, Sr.The XRD detected the presence of quartz as principal phase and copper sulfideand potassium magnesium as secondary phases. The Mössbauer spectra at roomtemperature (RT) for all the samples exhibit sextets which reveal the presence of an iron oxide or hydroxide. The fitting Mössbauer for both samples S1 and S4 have three doublets corresponding to iron in paramagnetic phases and a magnetic component ofaround 35.50 T corresponding to goethite, α-FeOOH. Sample S2 have two magnetic phases with internal fields of 37 T and 34.6 T which correspond to the goethite and other incorporated element in the structure. The sample S3 have three magnetic fields of H1 = 36.8 T, H2 = 33.6 T andH3 = 34.8 T which correspond to hydroxide iron, pyrrhotite and goethite respectively.

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