Simultaneous detection of As and Se in polyester resin skin phantoms.

Autor: Gherase MR; Physics Department, Mount Allison University, Sackville, New Brunswick, Canada. mgherase@mta.ca, Vallee ME, Fleming DE
Jazyk: angličtina
Zdroj: Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine [Appl Radiat Isot] 2010 Apr-May; Vol. 68 (4-5), pp. 743-5. Date of Electronic Publication: 2009 Sep 19.
DOI: 10.1016/j.apradiso.2009.09.037
Abstrakt: It is known that As and Se act as metabolic antagonists. Hence, an improvement in assessing As-related health risks can be achieved by simultaneous quantitative measurements of both As and Se levels in the human body. In this paper, the simultaneous detection of trace concentrations of As and Se in polyester resin skin phantoms was demonstrated. The experiments were performed with a commercial miniature X-ray tube and silicon PiN detector X-ray fluorescence (XRF) system. No significant overlap between the K(alpha) peaks of the two elements was observed. Minimum detection limits of (1.05+/-0.02) microg As g(-1) and (0.88+/-0.02) microg Se g(-1) were found.
(Copyright 2009 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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