岭回归法同时测定五组分的研究

岭回归分光光度法（ＬＨＧ）是近年来发展起来的计算分光光度法之一，本文将该法应用于五组分体系——对乙酰氨基酚、对氨基酚、对硝基酚、对乙酰氨基酚乙酸酯、对硝基酚乙酸酯的分析研究，文中详细介绍了介质的选取，混合标准溶液组数的确定。实验结果表明，在０．１ｍｏｌ·Ｌ－１盐酸介质中，该法对样品中各组分的平均回收率在９５．５％～１０６．１％之间，相对标准偏差在０．８％～９．８％之间。本法具有操作简便又能与计算机联机等特点，已用于合成扑热息痛过程中样品的测定，结果满意。

Research into Simultaneous Determination of Five Components by Ridge Regression Spectrophotometry

Ridge regression spectrophotometry (LHG) is one of the computational spectrophotometry developed recently. It is used in this paper to the analysis of five component s--acetaminophen, p -aminophenol. p -nitrophenol. p -acetaminophenol acetic acid ester and p -nitrophenol acetic acid ester. The choose of medium and the determination of the amount of mixed standard solution were described in detail. The experimental results show that in the medium of 0.1 mol x L(-1) HCI, the recovery ratio of each component ranges from 95.5% to 106.1% and the RSD ranges from 0.8% to 9.8%. This approach is simple and suitable for the computer-aid analysis. The approach has been used to the analysis of the sample in the course of synthetic acetaminophen.