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本文简要地介绍了我们在X-射线荧光光谱法中化学富集方法方面的研究工作。由于地质样品的组成复杂,直接粉末法X-射线荧光测定时,基体效应影响严重和某些元素的测定灵敏度低而不能满足分析要求。我们研究的化学富集X-射线荧光分析方法,不仅消除了基体效应,而且实现了从试样中富集出ppm量的分析元素,从而极大地提高了分析元素的灵敏度。目前国内外在X-射线荧光光谱分析中常用的化学富集方法有:有机沉淀、共沉淀、离子
This article briefly introduces our work on the chemical enrichment method in X-ray fluorescence spectrometry. Due to the complex composition of geological samples, direct powder X-ray fluorescence determination, the matrix effect and serious impact of some elements of the determination of low sensitivity and can not meet the analytical requirements. The chemical enrichment X-ray fluorescence analysis method we studied not only eliminated the matrix effect but also enriched the amount of analyte in the sample to maximize the sensitivity of the analyte. At present, the methods of chemical enrichment commonly used in X-ray fluorescence spectrometry are as follows: organic precipitation, coprecipitation, ion