Copper Isotopic Analysis in Geological and Biological Reference Materials by MC‐ICP‐MS
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Authors
Sullivan, Kaj
Layton-Matthews, Daniel
Leybourne, Matthew
Kidder, James
Mester, Zoltan
Yang, Lu
Date
2020-01-24
Type
journal article
Language
en
Keyword
Non‐Traditional Stable Isotopes , δ65Cu , Anion Exchange Chromatography , MC‐ICP‐MS , Mass Bias , Reference Materials
Alternative Title
Abstract
The characterisation of relative copper isotope amount ratios (δ65Cu) helps constrain a variety of geochemical processes occurring in the geosphere, biosphere and hydrosphere. The accurate and precise determination of δ65Cu in matrix reference materials is crucial in the effort to validate measurement methods. With the goal of expanding the number and variety of available geological and biological materials, we have characterised the δ65Cu values of ten reference materials by MC‐ICP‐MS using C‐SSBIN model for mass bias correction. SGR‐1b (Green River shale), DOLT‐5 (dogfish liver), DORM‐4 (fish protein), TORT‐3 (lobster hepatopancreas), MESS‐4 (marine sediment) and PACS‐3 (marine sediment) have for the first time been characterised for δ65Cu. Additionally, four reference materials (with published δ65Cu values) have been characterised: BHVO‐1 (Hawaiian basalt), BIR‐1 (Icelandic basalt), W‐2a (diabase) and Seronorm™ Trace Elements Serum L‐1 (human serum). The reference materials measured in this study possess complex and varied matrices with copper mass fractions ranging from 1.2 µg g−1 to 497 µg g−1 and δ65Cu values ranging from −0.20‰ to 0.52‰ with a mean expanded uncertainty of ± 0.07‰ (U, k = 2), covering much of the natural copper isotope variability observed in the environment.
Description
This is the peer reviewed version of the following article: Sullivan, K., Layton‐Matthews, D., Leybourne, M., Kidder, J., Mester, Z. and Yang, L. (2020), Copper Isotopic Analysis in Geological and Biological Reference Materials by MC‐ICP‐MS. Geostandards and Geoanalytical Research doi:10.1111/ggr.12315, which has been published in final form at doi:https://doi.org/10.1111/ggr.12315. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
Citation
Sullivan, K., Layton‐Matthews, D., Leybourne, M., Kidder, J., Mester, Z. and Yang, L. (2020), Copper Isotopic Analysis in Geological and Biological Reference Materials by MC‐ICP‐MS. Geostandards and Geoanalytical Research doi:10.1111/ggr.12315
Publisher
Wiley