| 多接收等离子质谱（MC-ICP-MS )测定Mg同位素初步研究 |
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| 关键词:MC-ICP-MS Mg isotope |
| 基金项目:本文由国家自然科学基金重项目（编号40331005）和国家自然科学基金面上项目（编号40473039）资助 |
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| Primary Study on High-precision Measurement of Magnesium Isotopes Using MC-ICP-MS |
| A method for Mg isotope measurements using MC-ICPMS has been established. Using "sample-standard" bracketing technique, we tried to analyze magnesium isotopes by MC-ICP-MS on high-precision for SRM980, Aldrich, Romil and GSB materials. We discussed concentration effect and matrix effect on Mg measurement, aim to decrease interferences as possible. Relative to SRM980, we got: Aldrich (2.64±0.15)‰ (2σ) for δ26Mg and (1.34±0.09)‰ (2σ) for δ25Mg; Romil (2.46±0.15) ‰ (2σ) for δ26Mg and (1.27±0.08)‰ (2σ) for δ25Mg；Laboratory standard GSB (Laboratory of Isotope Geology, MLG) (4.05±0.03)‰ (2σ) for δ26Mg and (2.05±0.03)‰ (2σ) for δ25Mg． |
| He Xuexian,Zhu Xiangkun,Yang Chun,Tang Suohan.2005.Primary Study on High-precision Measurement of Magnesium Isotopes Using MC-ICP-MS[J].Acta Geoscientica Sinica,26(z1):15-18. |
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