TY - JOUR
T1 - Determination of trace halogens in rock samples by radiochemical neutron activation analysis coupled with the k0-standardization method
AU - Ozaki, Hiromasa
AU - Ebihara, Mitsuru
N1 - Funding Information:
Meteorite samples were generously donated by E. Jarosewich (Smithsonian Institute, Washington, DC) and S. Yoneda (National Science Museum, Tokyo), to whom our thanks go. We are indebted to H. Sawahata and M. Kawate for experimental assistance at JAERI (now JAEA). This study was made possible by a program for co-operative research by using JAERI (JAEA) facilities supported by University of Tokyo. This work was financially supported in part by a Grant-in-Aid for Scientific Research of the Ministry of Education, Culture and Science, Japan (no. 11440167 to ME).
PY - 2007/2/5
Y1 - 2007/2/5
N2 - Radiochemical neutron activation analysis coupled with the k0-standardization method (k0-RNAA method) was applied to silicate rock samples for the simultaneous determination of trace halogens (Cl, Br and I). Analytical results obtained by the k0-RNAA method for geological standard rocks and meteorite samples agreed with those determined by the conventional comparison method conducted in the same set of experiments, suggesting that the k0-RNAA method is as reliable as the conventional method. Our data for these samples are in good agreement with their literature values except for rare cases. Detection limits calculated under the present experimental condition are sufficiently low for Cl and Br but not for I for typical geologic and meteoritic samples. The k0-RNAA method coupled with longer neutron-irradiation is expected to yield satisfactorily low detection limits for halogens including I in these samples.
AB - Radiochemical neutron activation analysis coupled with the k0-standardization method (k0-RNAA method) was applied to silicate rock samples for the simultaneous determination of trace halogens (Cl, Br and I). Analytical results obtained by the k0-RNAA method for geological standard rocks and meteorite samples agreed with those determined by the conventional comparison method conducted in the same set of experiments, suggesting that the k0-RNAA method is as reliable as the conventional method. Our data for these samples are in good agreement with their literature values except for rare cases. Detection limits calculated under the present experimental condition are sufficiently low for Cl and Br but not for I for typical geologic and meteoritic samples. The k0-RNAA method coupled with longer neutron-irradiation is expected to yield satisfactorily low detection limits for halogens including I in these samples.
KW - Cosmochemical samples
KW - Geological samples
KW - Halogens
KW - Radiochemical neutron activation analysis
KW - k-Standardization
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U2 - 10.1016/j.aca.2006.10.032
DO - 10.1016/j.aca.2006.10.032
M3 - Article
C2 - 17386571
AN - SCOPUS:33846143845
VL - 583
SP - 384
EP - 391
JO - Analytica Chimica Acta
JF - Analytica Chimica Acta
SN - 0003-2670
IS - 2
ER -