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ACTIVATION ANALYSIS OF TRACE COBALT IN TISSUE USING 10.5-MINUTE COBALT-60M

David G. Kaiser, W. Wayne Meinke

Abstract

S>Microgram amounts of cobalt from vitamin B-12 were analyzed by rapid activation analysis in rat kidney tissue as well as in vitamin preparations. A 15-minute radiochemical separation procedure coupled with gamma-ray spectometry permitted utilization of the 10.5 --min Co/sup 60m/ radioisotope. With this procedure the lower limit of detection at a thermal neutron flux of 10/sup 12/ n/ cm/sup 2/ sec was about 5 x 10/sup -8/ grams of cobalt. (auth) ~s paser ~s pre~onslp Qs~~ tom ~e orlB

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Key concepts: Cobalt, Radiochemistry, Cobalt-60, Neutron activation analysis, Chemistry, Isotopes of cobalt, Nuclear chemistry, Detection limit