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Trace element studies in bioenvironmental samples using 3-MeV protons

Conference ·
OSTI ID:4134530
; ; ; ;  [1]
  1. eds.
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Trace metal compositions of a wide range of biological, environmental, medical and clinical samples were investigated using proton-induced x-ray emission analysis (PIXEA). The x-rays were detected with a Si(Li) detector and spectra from over 3000 irradiations have been recorded on magnetic tape. The chi$sup 2$ fitting code TRACE developed at our laboratory was used in a semi- automatic mode to extract abundances of elements from S to Cd. Various methods of overcoming analytical problems and specimen preparation difficulties are reported. Results from some samples for typical studies are illustrated along with the reasons for interest in the sample types. (auth)
Research Organization:
Duke Univ., Durham, NC; North Texas State Univ., Denton (USA)
NSA Number:
NSA-33-011475
OSTI ID:
4134530
Report Number(s):
CONF-741040--P1
Country of Publication:
United States
Language:
English

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