Simultaneous Determination of Anthocyanin and Ponceau 4R in Drink Powders by Derivative Spectrophotometry and Partial Least-Squares Multivariate Spectrophotometric Calibration

被引：0
|
作者：
Mahmure Ü. Özgür
Abdürrezzak Bozdoğan
Ayşe Erçağ
İkbal Koyuncu
机构：
[1]  Yıldız Technical University,
[2] Department of Chemistry,undefined
[3] TR-34210 İstanbul,undefined
[4] Turkey,undefined
[5]  İstanbul University,undefined
[6] Engineering Faculty,undefined
[7] Department of Chemistry,undefined
[8] TR-34850 İstanbul,undefined
[9] Turkey,undefined
来源：
Monatshefte für Chemie / Chemical Monthly | 2001年 / 132卷
关键词：
Keywords. Derivative spectrophotometry; Partial least-squares calibration; Anthocyanin; Ponceau 4R; Food analysis.;
D O I：
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学科分类号：
摘要：
 Two methods for the simultaneous determination of anthocyanin and ponceau 4R in drink powders by second derivative spectrophotometry and by partial least-squares multivariate spectrophotometric calibration are described. The procedures do not require any separation step. The methods were applied to determine both colorants in commercial gelatin powders; the results obtained are compared.
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页码：669 / 673
页数：4
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