光电直读光谱法作为一种相对分析方法,需要正确使用标准物质来校准分析样品化学元素含量测定值的准确度。介绍了标准物质在光谱分析中的3种类别,详细叙述了这3种类别在光谱分析中的应用,最后对光谱分析结果偏差的原因进行了分析。 Photoelectric direct reading spectroscopy as a relative analysis method requires the correct use of standard materials to calibrate the accuracy of the analysis of the chemical content of the sample. The three kinds of standard substances in the spectrum analysis are introduced. The application of the three kinds of classification in the spectrum analysis is described in detail. Finally, the reasons for the deviation of the spectral analysis results are analyzed.