发射光谱直接分析钢铁样品时,共存元素干扰和基体(内标)元素铁的含量变化对分析结果有显著影响。本文报告一种综合校正上述复杂干扰的新方法及计算机程序,其数学模型如下:分别以 c、c′和 c″表示元素的真实浓度、表观浓度和相对浓度,以 f_(ji)表示共存元素 i对目标元素 j 的干扰系数,计算过程为: Emission spectra directly analyze steel samples, the interference of coexisting elements and the content of iron in matrix (internal standard) have a significant impact on the analysis results. This paper reports a new method and computer program for the comprehensive correction of the above complex interference. The mathematical model is as follows: c, c ’and c "represent the true concentration, apparent concentration and relative concentration of elements, respectively, coexist in f_ (ji) The interference coefficient of element i on target element j is calculated as: