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  • Author or Editor: H. Akaiwa x
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Abstract  

A conventional chelating resin was prepared by the adsorption of a chelating agent on an anion exchange resin; the resulting exchanger was tentatively named a chelating agent-loaded resin. Three kinds of the resin have so far been prepared and the application of the resin to preconcentration and neutron activation analysis of trace chalcophile elements is reviewed.

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Abstract  

A chelating-agent loaded resin consisting of 8-quinolinol-5-sulfonic acid and an anion-exchange resin was prepared in order to apply the resin to the selective concentration of trace amounts of chalcophile elements in natural water samples prior to neutron activation analysis. Trace amounts of arsenic as well as copper and zinc were successfully collected and determined by the proposed method.

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Abstract  

Applying rapid radiochemical separation of iodine coupled with epithermal neutron activation, we reliably determined trace amounts /6–95 ng/ of iodine in rock samples such as sedimentary rocks and chondritic meteorites. Our data on meteorites are in good agreement with literature values, but for sedimentary rocks the present data were systematically lower than the literature values. Based on the data from duplicate analyses of some sedimentary rocks and the results of tracer experiments employed parallel to the rock analyses, we concluded that the analytical results obtained in this work for sedimentary rocks were more reliable than the literature values.

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