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AbstractAbstract
[en] The paper presents the levels of selenium in liver samples from Indian neonates, obtained at autopsy. The levels range from 0.18 to 0.56 μg Se/g of wet liver with a mean of 0.36 μg Se/g of wet liver. The liver samples were analysed for their selenium content by non-destructive neutron activation using the short-lived Se-77m (17.5s) produced by the nuclear reaction Se-76(n, γ)Se-77m. Se-77m emits low energy gamma-rays (160 keV) which were measured by a 3'' x 3'' NaI(Tl) well-type detector coupled to a 512-channel pulse-height analyser. The liver samples and the selenium standard were irradiated for 5O s in a flux of about 6x1010nxcm-2xs-1. The sample and the standard were both counted one after another for 30 seconds with a delay of 20 seconds between them. The half-life of Se-77m was followed. Interference from short-lived activity of 0-19(29 s, 190 keV) was negligible as the samples were dried thoroughly and only five channels on either side of the 160 keV photopeak of Se-77m were taken for calculations. (T.I.)
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5 refs.; 1 tab.
Record Type
Journal Article
Journal
Radiochemical and Radioanalytical Letters; ISSN 0079-9483;
; v. 34(1); p. 99-103

Country of publication
ANIMALS, BARYON REACTIONS, BODY, CHEMICAL ANALYSIS, DIGESTIVE SYSTEM, ELEMENTS, EVEN-ODD NUCLEI, GLANDS, HADRON REACTIONS, INFORMATION, INTERMEDIATE MASS NUCLEI, ISOMERIC TRANSITION ISOTOPES, ISOTOPES, NUCLEAR REACTIONS, NUCLEI, NUCLEON REACTIONS, ORGANS, RADIOISOTOPES, SECONDS LIVING RADIOISOTOPES, SELENIUM ISOTOPES, SEMIMETALS, STABLE ISOTOPES
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