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用开发的TBHXRF基本参数法程序计算了复杂样品的基体效应.提出一个修正多元体系基体效应的校正数学模型和计算影响系数α及β,导出的校正模式及影响系数的物理意义清楚、明确.用该法分析了不锈钢样品获得良好的结果.还指出在某些情况中,三次荧光的影响不能忽略,从对比实验中得出结论,对NI浓度高的钢铁样品在分析CR时,必须考虑NI、FE对CRKα的三次荧光效应影响.“,”With the help of fundamental parameter program developed by the authors,the matrix effect of multicomponent complex sample and the composition of each element′s X ray fluorescence intensity are calculated.A new mathematical model for correcting multicomponent matrix effect is deduced theoretically.This model provides a new method to calculate influence coefficients ?α? and ?β?.The correction model and the influence coefficients introduced by this p...