高级变质岩中Zr、Hf、Nb、Ta的ICP-MS准确分析

刘勇胜; 胡圣虹; 柳小明; 高山

Volume 28 Issue 2

Mar. 2003

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Article Navigation > Earth Science > 2003 > 28(2): 151-156

LIU Yong-sheng, HU Sheng-hong, LIU Xiao-ming, GAO Shan, 2003. Accurate Analysis of Zr, Hf, Nb and Ta in High-Grade Metamorphic Rocks with ICP-MS. Earth Science, 28(2): 151-156.

Citation:

LIU Yong-sheng, HU Sheng-hong, LIU Xiao-ming, GAO Shan, 2003. Accurate Analysis of Zr, Hf, Nb and Ta in High-Grade Metamorphic Rocks with ICP-MS. Earth Science, 28(2): 151-156.

LIU Yong-sheng, HU Sheng-hong, LIU Xiao-ming, GAO Shan, 2003. Accurate Analysis of Zr, Hf, Nb and Ta in High-Grade Metamorphic Rocks with ICP-MS. Earth Science, 28(2): 151-156.

Citation:

LIU Yong-sheng, HU Sheng-hong, LIU Xiao-ming, GAO Shan, 2003. Accurate Analysis of Zr, Hf, Nb and Ta in High-Grade Metamorphic Rocks with ICP-MS. Earth Science, 28(2): 151-156.

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Accurate Analysis of Zr, Hf, Nb and Ta in High-Grade Metamorphic Rocks with ICP-MS

1.
ICP-MS Laboratory, Faculty of Earth Sciences, China University of Geosciences, Wuhan 430074, China
2.
Open Laboratory of Continental Dynamics, Department of Geology, Northwest University, Xi'an 710069, China

Received Date: 2002-06-06
Publish Date: 2003-03-25

Abstract

Abstract

This study indicates that to obtain the accurate contents of Zr and Hf in the high-grade metamorphic rocks (e.g., gneiss, granulite and eclogite) with ICP-MS, the rock-digesting time must be > 36 h at 190 ℃ in closed Teflon Bomb. Unlike Zr and Hf, the most important factor limiting the analytical precision and accuracy of Nb and Ta in ICP-MS analysis is their instability in the medium of diluted HNO₃. Our technique of rock-digesting at 190 ℃ for 48 h in high-pressure sealed Teflon Bomb incorporating with "F^- matrix" match effectively solve the problem of accurate analysis of Zr, Hf, Nb and Ta with ICP-MS.
- high-grade metamorphic rock,
- Nb,
- Ta,
- - matrix" match')">Zr and Hf "F^- matrix" match

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References(11)

References

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