流动注射pH梯度技术及偏最小二乘法同时测定Cu2+,Ni2+及Cu2+,Ni2+,Co2+
来源期刊：中南大学学报(自然科学版)1992年第1期
论文作者：李华昌 满瑞林 赵新娜
文章页码：105 - 110
关键词：流动注射; pH梯度; 偏最小二乘法; 多组分
Key words：flow injection; pH gradients; Partial least-Squares; multi-components
摘 要：本文以作3,5-diBr-PADAT显色剂,根据Cu2+,Ni2+,Co2+显色的pH范围不同,用流动注射pH梯度技术,并借助偏最小二乘法(PLS),对线性加和性较好的Cu2+,Ni2+二元体系及加和性较差的Cu2+,Ni2+,Co2+三元体系进行了研究,所获结果比较满意。
Abstract: The use of 3.5-diBr-PADAT as the chromogenic reagent for the simulta-neous determination of the binary mixtures(Cu2+,Ni2+),whose additivity ofabsorbance is fairly good,and the ternary mixtures(Cu2+,Ni2+,Co2+),whoseadditivity of absorbance is oor,is studied.According to the difference of thepH range,FIA pH gradients technique and Partial Least-Squares are employed.The results are satisfactory.
