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本文介绍了以低压聚乙烯垫底、镶边、粉末直接压片、X荧光谱定量测定土壤中常量元素的方法。用逐步回归法选择影响元素,并以散射内标与经验系数相结合校正基体效应,同时对“经验系数法”和“基本参数与经验系数结合法”进行了比较。
This paper presents a method for the quantitative determination of major elements in soil by low pressure polyethylene bottom, edge trim, direct powder compaction and X-ray fluorescence spectrometry. The stepwise regression method was used to select the influencing elements, and the matrix effect was corrected by combining the scattering internal standard with the empirical coefficient. Meanwhile, the “empirical coefficient method” and the “combination of basic parameters and empirical coefficients” were compared.