DETERMINATION OF MOLYBDENUM IN PLANT REFERENCE MATERIAL BY THERMAL-IONIZATION ISOTOPE-DILUTION MASS-SPECTROMETRY

被引：4

作者：

SAUMER, M

GANTNER, E

REINHARDT, J

ACHE, HJ

机构：

[1] Institut für Radiochemie, Kernforschungszentrum Karlsruhe GmbH, Karlsruhe, W-7500

来源：

FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY | 1992年 / 344卷 / 03期

关键词：

D O I：

10.1007/BF00325124

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

An analytical method is described for the determination of the concentration and the isotopic composition of molybdenum in plant samples using thermal ionization mass spectrometry. After microwave acid digestion and liquid-liquid extractive separation with Amberlite LA-2, the molybdenum isotopes are measured as MoO3--ions in a quadrupole mass spectrometer. In all cases, the relative standard deviation of the measurements of both natural and spike molybdenum was better than 3% for all ratios measured. The concentration of molybdenum found in three different plant reference materials agreed well with the certified values.

引用

页码：109 / 113

页数：5

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