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Technique for the analysis of insulating materials by glow discharge mass spectrometry
Technique for the analysis of insulating materials by glow discharge mass spectrometry
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机译:辉光放电质谱分析绝缘材料的技术
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摘要
The present invention describes a technique for sample preparation and analysis of ceramics and oxides. The technique involves mixing the ceramic or oxide powder with a conducting powder such as gallium, indium or silver and adding a small amount of dopant. The dopant comprises approximately 5-30% by weight of the sample and is selected from the group comprising thoria, yttria or ytterbia. It is theorized that the addition of the dopant provides a source of electrons that stabilizes the plasma in the glow discharge mass spectrometer which allows for impurity analysis in the part-per-million range.
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