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Ion exchange chromatography and high precision isotopic measurements of zirconium by MC-ICP-MS

Abstract:

This paper presents a new technique for the precise and accurate determination of Zr isotopic compositions in geological samples. Following the separation of Zr from the geological matrix with a two-stage anion-exchange procedure the isotopic compositions are measured by multiple collector ICP-MS. Replicate dissolutions of the carbonaceous chondrite Allende with <100 ng Zr yield a long-term reproducibility of ±39 ppm for 91Zr/ 90Zr, ±25 ppm for 92Zr/90Zr, and ±82 ppm for 96Zr/90Zr. Analyse...

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Publication status:
Published

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Publisher copy:
10.1039/b310766c

Authors


Schonbachler, M More by this author
Rehkamper, M More by this author
More by this author
Institution:
University of Oxford
Department:
Oxford, MPLS, Earth Sciences
Journal:
ANALYST
Volume:
129
Issue:
1
Pages:
32-37
Publication date:
2004
DOI:
EISSN:
1364-5528
ISSN:
0003-2654
URN:
uuid:3b6925c2-014c-4cbd-b24d-a76909236c89
Source identifiers:
151985
Local pid:
pubs:151985
Language:
English

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