TY - JOUR
T1 - Determination of chlorine, bromine and iodine in rock samples by radiochemical neutron activation analysis
AU - Ebihara, M.
AU - Ozaki, H.
AU - Kato, F.
AU - Nakahara, H.
N1 - Funding Information:
The sedimentary rock samples were kindly provided by S. AIYAWA,t o whom our thanks go. We ate indebted to the committee of University of Tokyo for the cooperative use of the reactor facility of Rikkyo University. This work is partly supported by a Grant-in-Aid defrayed by the Ministry of Education, Culture and Science, Japan (No. 05453012 to ME).
PY - 1997
Y1 - 1997
N2 - Chlorine, bromine and iodine (hereafter, halogens) were determined for rock samples by radiochemical neutron activation analysis. The powdered samples and reference standards prepared from chemical reagents were simultaneously irradiated for 10 to 30 minutes with or without a cadmium filter in a TRIGA-II reactor at the Institute for Atomic Energy, Rikkyo University. The samples were subjected to radiochemical procedures of halogens immediately after the irradiation. Iodine was firstly precipitated as PdI2, and chlorine and bromine were successively precipitated as Ag-halides at the same time. In this study, geological standard rocks, sedimentary rocks and meteorites were analyzed for trace halogens. In some Antarctic meteorites, iodine contents were observed to be anomalously high. Chlorine contents also are somewhat high. The overabundance of iodine and chlorine must be caused by terrestrial contamination on the Antarctica.
AB - Chlorine, bromine and iodine (hereafter, halogens) were determined for rock samples by radiochemical neutron activation analysis. The powdered samples and reference standards prepared from chemical reagents were simultaneously irradiated for 10 to 30 minutes with or without a cadmium filter in a TRIGA-II reactor at the Institute for Atomic Energy, Rikkyo University. The samples were subjected to radiochemical procedures of halogens immediately after the irradiation. Iodine was firstly precipitated as PdI2, and chlorine and bromine were successively precipitated as Ag-halides at the same time. In this study, geological standard rocks, sedimentary rocks and meteorites were analyzed for trace halogens. In some Antarctic meteorites, iodine contents were observed to be anomalously high. Chlorine contents also are somewhat high. The overabundance of iodine and chlorine must be caused by terrestrial contamination on the Antarctica.
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U2 - 10.1007/BF02034504
DO - 10.1007/BF02034504
M3 - Article
AN - SCOPUS:0030952924
VL - 216
SP - 107
EP - 112
JO - Journal of Radioanalytical and Nuclear Chemistry
JF - Journal of Radioanalytical and Nuclear Chemistry
SN - 0022-4081
IS - 1
ER -
