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目前有关ICP-AES中的基体干扰已有不少报道,但大部分都是研究Na、K等易电离元素的影响。Ca、Mg在土壤、海水以及地质等样品中往往以主成份存在,对于ICP-AES分析测定会产生明显影响。因此搞清这两个元素在ICP-AES中的基体效应对于分析条件的最优化是十分有益的。本文以不同特性的十五种元素(Ba、Be、Ca、Cd、Co、Cu、Fe、Ga、Li、Mg、Mn、Na、Pb、Sr、Zn)为对象在两种不同仪器上研究了Ca、Mg基体效应的垂直空间分布,结果表明:1.Ca、Mg对所有谱线信号均有相似的干扰趋势:在低观测区域对分析原子线及离子线均呈现增感,在同一观测高度Mg的增
At present, there are many reports about matrix interferences in ICP-AES, but most of them are the effects of easy ionization elements such as Na and K. Ca, Mg often exist as main components in soil, seawater and geology samples, and have obvious influence on ICP-AES analysis. So figuring out the matrix effect of these two elements in ICP-AES is very beneficial for optimizing the analytical conditions. In this paper, fifteen kinds of elements (Ba, Be, Ca, Cd, Co, Cu, Fe, Ga, Li, Mg, Mn, Na, Pb, Sr, Zn) with different characteristics were studied on two different instruments Ca, Mg matrix effect of the vertical distribution of the results show that: 1.Ca, Mg on all spectral line signals have a similar trend of interference: in the low observation area for the analysis of atomic and ionic lines were sensitized, at the same observation height Increase of Mg