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Two kinds of carbonate reference materials, coral (JCp-1) and giant clam (JCt-1), were subjected to neutron activation analysis (NAA) using the Kyoto University Reactor in order to determine the halogen contents (Cl, Br, and I), as well as the abundances of a few other elements in these materials. The results from the present study are in agreement with previously reported data using this technique...
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