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language
eng
Author
Kimura, Junichi
Nakano, Nastuko
Description
A precise Pb isotope analytical method using a double-focusing MC-ICP-MS routinely yields Pb isotope ratio sample data with an external reproducibility of <170ppm.This is achieved by making(a)an isobaric overlap correction of ^<204>Hg on ^<204>Pb,(b)an external mass fractionation correction using ^<203>Tl/^<205>Tl,and(c)a mass-dependent mass fractionation conlection between Tl and Pb using a sample-standard bracket method.We also report that Pb isotope ratios are fractionated during the single column-single bead anion exchange procedure described in a previous report in this series,particularly if single bead Pb purification is used.If a sufficiently large volume of elutant(in this case >1 ml 6 NM HCl)is collected in the first column separation,there is no measurable fractionation of Pb isotopes.Single step Pb separation is suffcient for MC-ICP-MS,and consequently relatively rapid sample throughput is achievable,in combination with the rapid measurement possible with MC-ICP-MS(15 samples a day).
Journal Title
島根大学地球資源環境学研究報告
Volume
23
Start Page
9
End Page
15
ISSN
13439774
Published Date
2004-12-27
NCID
AA11455176
DOI(SelfDOI)
Publisher
島根大学総合理工学部地球資源環境学教室
Publisher Aalternative
Department of Geoscience, Interdisciplinary Faculty of Science and Engineering, Shimane University
NII Type
Departmental Bulletin Paper
Format
PDF
Text Version
出版社版
OAI-PMH Set
Interdisciplinary Graduate School of Science and Engineering
Remark
12-14,16+ / 1993+
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