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选择不同电离电位的基体元素K、Na、La、Y和Mg,比较研究了它们对分析元素谱线强度的影响,其影响程度与谱线激发电位及基体元素电离电位有定量的相关关系。碱金属基体(K、Na)和非碱金属基体(La、Y和Mg)对分析元素检出限、背景强度及其相对标准偏差的影响显著不同,后者的记忆效应也大于前者。La的电离电位与Na相差不大。但其基体效应与Y相似,表明墓体效应与基体元素的化学性质有关。
The influence of the K, Na, La, Y and Mg matrix elements with different ionization potentials on the spectral line intensities of the analytes was studied. The influence degree was related to the spectral excitation potentials and the ionization potentials of the matrix elements. The effects of alkali metal substrates (K, Na) and non-alkali metal substrates (La, Y, and Mg) on the detection limits, background intensities and relative standard deviations of the analytes were significantly different, with the latter having more memory effects than the former. La ionization potential and Na or less. However, its matrix effect is similar to that of Y, indicating that the effect of the grave body is related to the chemical properties of the matrix elements.