PIXE as a tool for environmental and bio-medical analysis

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Abstract

The advantages of PIXE are discussed in elucidating certain problems which remain unsolved in environmental and bio-medical fields. The focus of this study centers on PIXE's characteristic ability to detect elements even in extreme compositions in a matrix. A Ca-rich shell containing more than 10 elements was successfully analyzed. No specific affinity could be substantiated for the elements with hard protein Conchiolin. Despite considerable Na, micro-constituents in salt were also adequately determined. Many elements were found in the salt processed through evaporation in the salt work; the Fe content in sea water was determined. Values of 86 and 81 ppb were obtained for natural and filtered sea water, respectively. The reliability was examined by comparison with results from AAS. The information obtained suggests the effectiveness of PIXE over the methods currently available.

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