【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.更多还原

【Abstract】 A new 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%.更多还原