摘要
采用牛顿-高斯-麦克脱法,对ca-EDTA电位络合滴定体系进行了无需标准溶液的滴定分析,所得滴定剂和被滴液的浓度与其标准值基本一致。
Based on the algorithm of Newton-Gauss non-linear fitting and combined with the method of Marquardt, this paper studies Ca-EDTA electrometric complexometric titrat- ing analysis without standard solution. The results are consistent with the compared test value with standard value.
关键词
电位滴定
络合滴定
标准溶液
钙
EDTA
Potentiometric titration
Algorithm of Newton-Gauss-Marquardt
