在X射线荧光光谱分析中,目前已普遍使用Alpha系数对基体效应进行数学校正。本文根据等效波长法计算理论Alpha系数的基本公式,导出了Alpha系数的转换公式。应用这些公式可以将消去项不同、熔剂项不同、稀释比项不同的理论Alpha系数(指熔融氧化物系统)。按用户的要求进行转换,可将一张Alpha系数表转换成几张,计算简便,转换Alpha系数应用于分析,结果令人满意。 In the X-ray fluorescence spectroscopy, the matrix effect has been mathematically corrected using alpha coefficients. In this paper, based on the equivalent wavelength method to calculate the basic formula of the theoretical alpha coefficient, the derivation of the alpha coefficient conversion formula. Applying these formulas eliminates the theoretical alpha factor (referred to as the molten oxide system) that is different from the elimination term, the flux term, and the dilution term. According to the user’s requirements for conversion, can be converted into a sheet of Alpha coefficient table, the calculation is simple, the conversion Alpha coefficient applied to the analysis, the results are satisfactory.