Simultaneous determination of anthocyanin and ponceau 4R in drink powders by derivative spectrophotometry and partial least-squares multivariate spectrophotometric calibration

Authors
Ozgur, MU Bozdogan, A Ercag, A Koyuncu, I
Citation
Mu. Ozgur et al., Simultaneous determination of anthocyanin and ponceau 4R in drink powders by derivative spectrophotometry and partial least-squares multivariate spectrophotometric calibration, MONATS CHEM, 132(6), 2001, pp. 669-673
Citations number
9
Categorie Soggetti
Chemistry
Journal title
MONATSHEFTE FUR CHEMIE
ISSN journal
00269247 → ACNP
Volume
132
Issue
6
Year of publication
2001
Pages
669 - 673
Database
ISI
SICI code
0026-9247(200106)132:6<669:SDOAAP>2.0.ZU;2-4
Abstract
Two methods for the simultaneous determination of anthocyanin and ponceau 4 R in drink powders by second derivative spectrophotometry and by partial le ast-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 obtaine d are compared.