Selenium determination In blood serum has been tested for thick (dry-ashed) samples using x-ray emission spectra Induced by 1.8- to 4-MeV proton beams. For quantitative analysis the internal standard method has been used. This paper presents the procedure and evaluations of the sample preparation and analysis. The statistical counting error is as low as 6% and the sensitivity ≤10 ppb for 100-mln counts with 1.8-MeV protons and for 30-mln counts with 4-MeV protons. © 1977, American Chemical Society. All rights reserved.
Determination of selenium in blood serum by proton-induced X-ray emission.
BERTI, MARINA;
1977
Abstract
Selenium determination In blood serum has been tested for thick (dry-ashed) samples using x-ray emission spectra Induced by 1.8- to 4-MeV proton beams. For quantitative analysis the internal standard method has been used. This paper presents the procedure and evaluations of the sample preparation and analysis. The statistical counting error is as low as 6% and the sensitivity ≤10 ppb for 100-mln counts with 1.8-MeV protons and for 30-mln counts with 4-MeV protons. © 1977, American Chemical Society. All rights reserved.
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