TY - JOUR
T1 - Reproducibility of elemental concentrations for JB-1, a GSJ rock reference sample, with special reference to Mo, W and Ta
AU - Kong, Ping
AU - Ebihara, Mitsuru
N1 - Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 1997
Y1 - 1997
N2 - Sixteen aliquots of JB-1 with different weights were studied by instrumental neutron activation analysis. It is observed that concentrations of Na, Fe, Sc, U, Th and rare earth elements are reproducible for JB-1 with the sample size of mg level. However, concentrations of Mo, W and Ta show a significant scatter even at 50 mg level. It is, therefore, suggested that chemical standards be used for Mo, W and Ta determination for geological samples, otherwise the rock reference sample, if used as a standard, be checked for the reproducibility of concentrations of these three elements.
AB - Sixteen aliquots of JB-1 with different weights were studied by instrumental neutron activation analysis. It is observed that concentrations of Na, Fe, Sc, U, Th and rare earth elements are reproducible for JB-1 with the sample size of mg level. However, concentrations of Mo, W and Ta show a significant scatter even at 50 mg level. It is, therefore, suggested that chemical standards be used for Mo, W and Ta determination for geological samples, otherwise the rock reference sample, if used as a standard, be checked for the reproducibility of concentrations of these three elements.
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U2 - 10.2343/geochemj.31.339
DO - 10.2343/geochemj.31.339
M3 - Article
AN - SCOPUS:0345629523
VL - 31
SP - 339
EP - 344
JO - Geochemical Journal
JF - Geochemical Journal
SN - 0016-7002
IS - 5
ER -