普适无标法中系数A_(isP)的准确性与所选参考相有关。本文给出了参考相选择的判据。当提供测量的样品数目多于样品所含相的相数时,应用最小二乘法能得到较为理想的结果,可满足一般定量相分析的要求。
Accuracy of coefficient A_(isp) is related to the reference phase chosenduring analysis. The criterion of choosing reference phase which may minimize theerror of A_(isp) was deduced. The optimum results could be obtained by using the me-thod of least sqares if the number of samples for analysis is more than the phasein samples. The procedure presented here is satisfactory for ordinary phase analy-sis.
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