高等学校化学学报 ›› 1993, Vol. 14 ›› Issue (7): 918.

• 研究论文 • 上一篇    下一篇

改进的迭代目标转换因子分析研究

沈含熙, 蔡硕为   

  1. 南开大学化学系, 天津 300071
  • 收稿日期:1992-09-24 修回日期:1993-03-30 出版日期:1993-07-24 发布日期:1993-07-24
  • 通讯作者: 沈含熙
  • 作者简介:第一作者.男, 60岁, 教授.
  • 基金资助:

    国家自然科学基金

Studies on the Improving Iterative Target Transformation Factor Analysis

SHEN Han-Xi, CAl Shuo-wei   

  1. Department of Chimistry, Nankai University, Tianjin, 300071
  • Received:1992-09-24 Revised:1993-03-30 Online:1993-07-24 Published:1993-07-24

摘要: 本文用非线性迭代偏最小二乘法分解原始数据阵,提出了改进的迭代目标转换因子分析法,大大简化了运算,方法简单、直观、准确.用此法对复方扑热息痛片中三组分(乙酰基水杨酸、扑热息痛及咖啡因)的含量进行紫外光谱测定,结果满意.

关键词: 迭代目标转换因子分析, 多组分同时紫外光谱测定, 乙酰基水杨酸, 扑热息痛, 咖啡因

Abstract: Anew method of factor analysis called improving iterative target transformation factor analysis (IITTFA) has been proposed.Making use of the iteration and target transformation of normal projection matrix to concentration target vector could avoid the course of inversion in general factor analysis and decrease possible amplification of experiment errors.Application of the nonlinear iterative partial least squares method (NIPLS) to solve the data matrix could simplify the procedure of general factor analysis.The method was used to assay the amounts of acetylsalicylic acid, P-acetamidophenol and caffeine containing in complex tablet of P-acetamidophenol.The average recoveries were 99.4%-100.6%.

Key words: Iterative target transformation factor analysis, Simultaneous spectrophotometric determination of multicomponents, Acetylsalicylie acid, p-Acetamidophenol, Caffeine

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