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INAA with gamma-gamma coincidence for selenium determination in food



Selenium detection limits of INAA are normally above its concentration in most biological materials. Gamma-gamma coincidence methodology can be used to improve the detection limits and uncertainties in the determination of selenium. Here, some edible parts of plants were measured using a HPGe detector equipped with a NaI(Tl) active shielding, producing spectra both in normal and coincidence modes. The results presented the reduction of the detection limits of selenium by a factor of 2 to 3 times and improvement in the uncertainty of up to 2 times.



Journal of Radioanalytical and Nuclear ChemistrySpringer Journals

Published: Dec 1, 2008

DOI: 10.1007/s10967-008-1607-5

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