安徽农业科学2011，Vol.39Issue(33)：20555-20556,20722,3.
校正变换矩阵法用于多组分食用色素的同时测定研究
Study on Application of Calibration Transform Matrix Method with Spectrophotometry for Simultaneous Determination of Food Coloring in Artificial Mixtures
摘要
Abstract
[Objective] To simultaneously determine three main food coloring mixtures in the carminum, amaranth and sunset yellow without any separation. [Methods] The calibration transform matrix (CTM) multivariate regression combined with spectrophotometry method was established, and calibration sample was established by using cross-validation method to select the appropriate number of factor. [ Result]The an-alyte recoveries from synthetic mixtures ranged from 94. 98% to 113. 69% for carmine, from 79. 25% to 104. 96% for amaranth, from 93.22% to 109.27% for sunset yellow, respectively. The root mean square of the apparent error in the test vector (AET) for the three ana-lytes from 13 samples were 0.392 72, 0.272 93, 0.200 80, respectively. [Conclusion] It is practicable to use calibration transform matrix method in determining mixed food coloring without any separation, and the forecasting accuracy has not significant difference between calibration transform matrix method and partial least square (PLS) regression.关键词
校正变换矩阵法/食用色素/分光光度法/同时测定Key words
Calibration transform matrix/Food coloring/Spectrophotometry/Simultaneous determination分类
农业科技引用本文复制引用
王丽平,田燕,皇甫立霞,董雄辎,司圣柱..校正变换矩阵法用于多组分食用色素的同时测定研究[J].安徽农业科学,2011,39(33):20555-20556,20722,3.基金项目
安徽省教育厅质量工程一般教研项目(2008jyxm467) （2008jyxm467）
安徽省高校省级优秀青年人才基金项目(2010SQRL060). （2010SQRL060）
