TY - JOUR
T1 - Comparison of RNAA and ICP-MS for the determination of ultra-traces of Th and U in geological and cosmochemical samples
AU - Chai, J.
AU - Oura, Y.
AU - Ebihara, M.
N1 - Copyright:
Copyright 2004 Elsevier Science B.V., Amsterdam. All rights reserved.
PY - 2003/3/1
Y1 - 2003/3/1
N2 - In order to determine thorium and uranium traces in geochemical and cosmochemical samples, we developed an ICP-MS procedure, in which an anion-exchange step was introduced after sample digestion to separate major matrix elements, leading to decrease the dilution factor and increase the sensitivity for Th and U. The ICP-MS procedure was compared to the RNAA procedure which we recently developed for the same purpose. Both ICP-MS and RNAA procedures developed were found to yield similar detection limits (sub ppb) for Th and U.
AB - In order to determine thorium and uranium traces in geochemical and cosmochemical samples, we developed an ICP-MS procedure, in which an anion-exchange step was introduced after sample digestion to separate major matrix elements, leading to decrease the dilution factor and increase the sensitivity for Th and U. The ICP-MS procedure was compared to the RNAA procedure which we recently developed for the same purpose. Both ICP-MS and RNAA procedures developed were found to yield similar detection limits (sub ppb) for Th and U.
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U2 - 10.1023/A:1022563828194
DO - 10.1023/A:1022563828194
M3 - Article
AN - SCOPUS:0037339676
VL - 255
SP - 471
EP - 475
JO - Journal of Radioanalytical and Nuclear Chemistry
JF - Journal of Radioanalytical and Nuclear Chemistry
SN - 0022-4081
IS - 3
ER -
