主成分分析同时单点pH滴定法研究  

Research on simultaneous singlepoint pH titration of principal component analysis

作　　者：张大伦[1] 

机构地区：[1]武汉化工学院制药系,武汉430073

出　　处：《武汉化工学院学报》1999年第4期1-4,共4页Journal of Wuhan Institute of Chemical Technology

摘　　要：将主成分分析用于多组分同时单点ｐＨ滴定法中，讨论了方法原理，建立了主成分分析常数矩阵，对８ 个三组分极弱酸和１２ 个四组分极弱碱混合样进行了测定，相对误差和相对标准偏差约０．２％ ，结果令人满意．The principal component analysis method was applied to singlepoint pH titration. The method can determine individual component concentration of the mixture of very weak acids or bases simultaneously. The principle of the method was discussed and the constant matrix of principal component analysis was established. Eight ternary mixed samples of very weak acid and twelve quaternary mixed samples of very weak bases were determined with satisfactory results.

关 键 词：主成分分析 同时单点 滴定法 极弱酸碱 PH值 

分 类 号：O655.2[理学—分析化学]