Magnesium isotope ratio measurements by negative thermal ionisation mass spectrometry using molecular fluoride ions

被引：11

作者：

Richter, S ^{[1
]}

Berglund, M ^{[1
]}

Hennessy, C ^{[1
]}

机构：

[1] Commiss European Communities, Joint Res Ctr, Inst Reference Mat & Measurements, B-2440 Geel, Belgium

来源：

FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY | 1999年 / 364卷 / 05期

关键词：

Ionisation Mass Spectrometry; MgF2; Thermal Ionisation Mass Spectrometry; Ionisation Mass Spectrometer; Thermal Ionisation Mass;

D O I：

10.1007/s002160051371

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A new technique for accurate Mg isotope ratio measurements has been developed with MgF2 as sample compound. With the help of a fluorinating agent negatively charged MgF3 molecular ions were formed in the ion source of a thermal ionisation mass spectrometer. An evaporation study has been performed and the results clearly show that Mg is evaporated from the filament as MgF2 molecules. The MgF2 technique has been applied in the certification of a candidate Mg-26-enriched Spike Isotope Reference Material. The result from this new technique has been compared with results obtained for the same material using ICP-MS.

引用

页码：478 / 481

页数：4

共 6 条

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Walczyk, T
[J]. INTERNATIONAL JOURNAL OF MASS SPECTROMETRY AND ION PROCESSES, 1997, 161 (1-3): : 217 - 227
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