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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 5, Number 1
JKCSEZ 5(1)
February 20, 1961 

 
Title
Activation-Analysis of trace Thallium in Meteorites, Rocks, Minerals, Alloys, and Biological Sample using 4.2-Minute Thallium-206

4.2분의 단수명 Thallium-206의 방사화분석
Author
Chong Kuk Kim

김종국
Keywords
Abstract
Microgram quantities of thallirum in meteorites, rocks, minerals, alloys and biological samples have been analyzed by rapid neutron activation analysis. A l0-minute radiochemical separation procedure coupled with a gas-flow proportional detector for 4.2-minute half life measurement and a gamma or beta scintillation detector placed in close proximity to the sample permitted detection of the 4.2-min Tl206. Samples were irradiated for 10-minutes at a thermal neutron flux of approximately 0.95×1011 neutron-cm-2-sec-1. The low limits of detection was about 10-7 gm of thallium.
Page
26 - 28
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