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A Reappraisal of Rb, Y, Zr, Pb and Th Values in Geochemical Reference Material BHVO‐1
Author(s) -
Chazey William J.,
Neal Clive R.,
Jain Jinesh C.,
Kinman William S.
Publication year - 2003
Publication title -
geostandards newsletter
Language(s) - English
Resource type - Journals
eISSN - 1751-908X
pISSN - 0150-5505
DOI - 10.1111/j.1751-908x.2003.tb01017.x
Subject(s) - analytical chemistry (journal) , inductively coupled plasma mass spectrometry , chemistry , mass spectrometry , environmental chemistry , chromatography
The geochemical reference material BHVO‐1 was analysed by a variety of techniques over a six year period. These techniques included inductively coupled plasma‐mass spectrometry and atomic emission spectroscopy (ICP‐MS and ICP‐AES, respectively), laser ablation ICP‐MS and spark source mass spectroscopy. Inconsistencies between the published consensus values reported by Gladney and Roelandts (1988, Geostandards Newsletter) and the results of our study are noted for Rb, Y, Zr, Pb and Th. The values reported here for Rb, Y, Zr and Pb are generally lower, while Th is higher than the consensus value. This is not an analytical artefact unique to the University of Notre Dame ICP‐MS facility, as most of the BHVO‐1 analyses reported over the last ten to twenty years are in agreement with our results. We propose new consensus values for each of these elements as follows: Rb = 9.3 ± 0.2 μg g‐1 (compared to 11 ± 2 μg g‐1), Y = 24.4 ± 1.3 μg g‐1 (compared to 27.6 ± 1.7 μg g‐1), Zr = 172 ± 10 μg g‐1 (compared to 179 ± 21 μg g‐1), Pb = 2.2 ± 0.2 μg g‐1 (compared to 2.6 ± 0.9 μg g‐1) and Th = 1.22 ± 0.02 μg g‐1 (compared to 1.08 ± 0.15 μg g‐1).