ANALYSIS OF SMALL AMOUNTS OF SOLID SAMPLES BY SPARK-SOURCE MASS-SPECTROMETRY

被引：6
|
作者：
SAITO, M
机构：
[1] Materials Characterization Division, National Research Institute for Metals, Meguroku, Tokyo, 3-12, 2-chome, Nakameguro
来源：
ANALYTICA CHIMICA ACTA | 1991年 / 242卷 / 01期
关键词：
MASS SPECTROMETRY; SOLID SAMPLES;
D O I：
10.1016/0003-2670(91)87055-C
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Various elements were determined in solid samples weighing < 2 mg by spark-source mass spectrometry. The samples were fixed on the top of a cylindrical graphite electrode using a conductive silver paint. After baking, the samples were sparked against a tantalum or gold wire. The method was used for the determination of impurities in steel, iron, molybdenum and CdSe. For samples weighing ca. 1 mg, detection limits of the order of 1-mu-g g-1 were obtained. A relationship between the relative sensitivity factor and physical properties is proposed.
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页码：117 / 122
页数：6
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