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Development of Two New Copper Isotope Standard Solutions and their Copper Isotopic Compositions
- Source :
- Geostandards and Geoanalytical Research. 41:77-84
- Publication Year :
- 2016
- Publisher :
- Wiley, 2016.
-
Abstract
- In this study, two new laboratory reference solutions for testing Cu isotopic composition were established and investigated. Two commercially available pure copper products, copper plate and copper wire, were dissolved in 1000-ml Teflon® bottles, to produce 200 μg ml−1 stock solutions (hereafter referred to as NWU-Cu-A and NWU-Cu-B), and cryogenically stored. The Cu isotopic compositions of the two samples were determined in three different laboratories using multi-collector inductively coupled plasma-mass spectrometry, and the Cu isotopic compositions obtained from the standard-sample bracketing method were consistent within the two standard deviation (2s) range. The Cu isotopic compositions of the NWU-Cu-A and NWU-Cu-B standard solutions were δ65Cu = +0.91 ± 0.03‰ (2s, n = 42) and δ65Cu = −0.05 ±0.03‰ (2s, n = 49), respectively, relative to the reference material NIST SRM 976.
- Subjects :
- Chemistry
Stable isotope ratio
Isotopes of copper
010401 analytical chemistry
Radiochemistry
Copper wire
chemistry.chemical_element
Geology
Standard solution
010502 geochemistry & geophysics
Mass spectrometry
01 natural sciences
Copper
Isotopic composition
0104 chemical sciences
Isotopic signature
Geochemistry and Petrology
0105 earth and related environmental sciences
Subjects
Details
- ISSN :
- 16394488
- Volume :
- 41
- Database :
- OpenAIRE
- Journal :
- Geostandards and Geoanalytical Research
- Accession number :
- edsair.doi...........d919162bde6037225c7a93187fae58af