Simultaneous determination of sunset yellow and Ponceau 4R in gelatin powder by derivative spectrophotometry and partial least-squares multivariate spectrophotometric calibration

Authors
Bozdogan, A Ozgur, MU Koyuncu, I
Citation
A. Bozdogan et al., Simultaneous determination of sunset yellow and Ponceau 4R in gelatin powder by derivative spectrophotometry and partial least-squares multivariate spectrophotometric calibration, ANAL LETTER, 33(14), 2000, pp. 2975-2982
Citations number
8
Categorie Soggetti
Chemistry & Analysis","Spectroscopy /Instrumentation/Analytical Sciences
Journal title
ANALYTICAL LETTERS
ISSN journal
00032719 → ACNP
Volume
33
Issue
14
Year of publication
2000
Pages
2975 - 2982
Database
ISI
SICI code
0003-2719(2000)33:14<2975:SDOSYA>2.0.ZU;2-I
Abstract
Two methods for the simultaneous determination of Sunset Yellow and Ponceau 4R in gelatin powders by first derivative spectrophotometry and by partial least-squares multivariate spectrophotometric calibration are described. T hese procedures do not require any separation step. These methods were appl ied to determine both colorants in commercial gelatin powders and the resul ts obtained were compared. A good statistical agreement was obtained betwee n the results.