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claudia-bouman
Team TFS
Team TFS
Determination of 87Sr/86Sr and δ88/86Sr ratios in plant materials using MC-ICP-MS
Hou-Chun Liu (1,2), Chuan-Hsiung Chung (1,2), Chen-Feng You (1,2) and Yi-Hsuan Chiang (1)
1) Department of Earth Sciences, National Cheng Kung University, 70101 Tainan, ROC, Taiwan, 2) Earth Dynamic System Research Center, National Cheng Kung University, 70101 Tainan, ROC, Taiwan
Analytical and Bioanalytical Chemistry (2016), V408, pp387–397, doi: 10.1007/s00216-015-9070-y
A protocol for highly accurate and precise determination of Sr isotope ratios in plant materials, (87)Sr/(86)Sr and δ (88/86)Sr, by multi-collector inductively coupled plasma mass spectrometry (MC-ICP-MS) is presented in this study. An Eichrom Sr resin was used for matrix separation and an improved Zr empirical external normalization coupled with standard-sample bracketing method (Zr EEN-SSB) was applied to mass bias correction during Sr isotope MC-ICP-MS measurements. Potential influences of matrix elements, and polyatomic and isobaric interferences on the Sr isotopic determination were further evaluated using NIST SRM 987 Sr isotopic standard spiked with various amount of Ca, Mg, and Rb contents.
  • MC-ICPMS
  • Neptune
  • Sr isotopes
  • NIST SRM-1515
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