分析测试学报2009，Vol.28Issue(11)：1314-1317,1322,5.DOI:10.3969/j.issn.1004-4957.2009.11.019
紫外光谱法对维生素E油酸酯、维生素E与油酸的同时测定
Simultaneous Determination of Vitamin E Oleate,Vitamin E and Oleic Acid by Ultraviolet Spectroscopy Method
摘要
Abstract
A simultaneous determination method was established for the determination of vitamin E, oleic acid and vitamin E oleate. The mixture signal was gotten by UV - Vis fiber-optical spectrometer. In this experiment, calibration set and prediction set were designed by uniform design. A calibration model of three components system for simultaneous determination was built by the partial least square at 255 - 315 nm and a predicted model of oleic acid was improved by interval PLS algorithm at selected optimal interval. The results showed that, comparing with the outputs of PLS, iPLS could apparently improve the accuracy of prediction, especially for components with low absorbance signal, and the maximum relative error reduced from 54. 7% to 8. 98% . Therefore, the constructed model was suitable for the requirement of in-situ anlysis for dynamic study.关键词
原位分析/VE-油酸-VE油酸酯/偏最小二乘法/间隔区间偏最小二乘法Key words
in-situ analysis/ VE - oleic acid - vitamin E oleate/ partial least squres/ interval partial least squares分类
化学化工引用本文复制引用
粟晖,黎国梁,姚志湘,郭晓菲..紫外光谱法对维生素E油酸酯、维生素E与油酸的同时测定[J].分析测试学报,2009,28(11):1314-1317,1322,5.基金项目
广西自然科学基金资助项目(桂科自0832064) （桂科自0832064）
广西教育厅桂教科研资助项目(200708MS067) （200708MS067）
