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本文对多组份体系同时测定的CPA矩阵法进行了改进,降低了P矩阵对实验中偶然误差的敏感程度。将此法用于PAR-重金属离子体系的测定,获得了满意的结果,并用于实际样品的分析。
In this paper, the CPA matrix method for simultaneous determination of multi-component systems is improved, which reduces the sensitivity of P matrix to the accidental errors in experiments. This method was applied to the determination of PAR-heavy metal ion system and obtained satisfactory results and was used for the analysis of actual samples.