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| Separation of Cu and Zn in Cobalt-rich Crusts for Isotope Determination by MC-ICP MS |
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| DOI： |
| KeyWord:cobalt-rich crusts MC-ICP MS Cu isotopes Zn isotopes |
| Author | Institution |
| HE Lian-hua，LIU Ji-hua，ZHANG Jun，ZHANG Hui，GAO Jing-jing，CUI Jing-jing，ZHANG Ying |
国家海洋局第一海洋研究所海洋沉积与环境地质国家海洋局重点实验室 |
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| Abstract: |
| An optimized chemical separation and purification method for measuring Cu and Zn isotopic composition in cobalt-rich crusts was established.A new type of anion exchange resin，AG MP-1M，was successfully applied in the chemical separation of Cu，Co，Fe and Zn from cobalt-rich crusts.Cu，Co，Fe and Zn were separated using 8.2 mol/L HCl+0.01% HF+0.001% H2O2，2 mol/L HCl+0.001% H2O2 and 0.5 mol/L HNO3 as eluents.The recoveries for Cu and Zn were both close to 100%.No mass fractionation during the chemical separation procedure was observed.This method could be applied in the separation of Cu and Zn in Co-rich crusts for high-precision isotope analysis using MC-ICP MS. |
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