Abstract
A very rapid radiochemical procedure was developed for antimony and arsenic. A sample is added to a 30% solution of H/sub 2/SO/sub 4/ containing a carrier for antimony or arsenic (or both). This solution is dropped into a flask containing granular zinc at 100 deg C. The volatile stibine and/or arsine formed is passed through a hot quartz tube and decomposed to the metal, which collects as a metallic mirror on a cooler portion of the quartz tube. This metal is dissolved in H/sub 2/SO/sub 4/ and assayed. The chemical yield is consistently between 70 and 80%. The time required ior separation of the metal from the other elements of a fission product solutlon is about 10 seconds. The decontamination factors for the antimony procedure are: Mixed fission products (2 weeks old) = 10/ sup 5/, I = 3 x 10/sup 4/, Te = 4 x 10/sup 4/, Sn =>10/sup 5/, As = 20-50. The decontamination factors for the arsenic procedure are: Mixed fission products == 10/sup 7/, Sb = 2 x 10/sup 3/, Sn =>10/sup 6/. (auth)
Published Version
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