偏最小二乘分光光度法同时测定镍基合金中的铈和钇

Simultaneous Determination of Cerium and Yttrium in Nickel Base Alloys by Partial Least Squares Spectrophotometry

以对乙酰基偶氮氯膦（ＣＰＡＰＡ）为显色剂，研究了同时测定Ｃｅ和Ｙ的最佳条件。由于二者吸收光谱严重重叠，本文运用偏最小二乘法实现了Ｃｅ和Ｙ的同时测定，结果满意。

With p acetylchlorophosphonazo(CPA PA) as the chromogenic reagent,the optium conditions for simultaneous determination of Ce and Y were studied.Since the absorption spectra of Ce CPA PA and Y CPA PA were seriously overlapped,partial least squares method was employed.This method was applied to the analysis of Ce and Y in nickel base alloys,satisfactory results were obtained.