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6400663 
Journal Article 
SPECTRAL SIMULTANEOUS DETERMINATION OF TARTRAZINE, ALLURA RED, SUNSET YELLOW AND CARAMEL IN DRINK SAMPLE BY CHEMOMETRiC METHOD 
Aktas, AH; Ertokus, GP 
2010 
1 
Reviews in Analytical Chemistry
ISSN: 0048-752X 
29 
2 
107-115 
WOS:000281694300004 
The simultaneous determination of tartrazine, allura red, sunset yellow and caramel in quarternary mixtures and commercial preparation were performed by using the chemometric calibrations based on the use of UV-VIS spectra. The data obtained from experiments were processed by chemometric approaches, such as principal component regression (PCR). The absorbance data in the UV-Vis spectra were measured at 16 wavelenghth points in the UV-VIS spectra range 250-550 nm. The proposed methods were validated by using synthetic ternary mixtures and applied to simultaneous determination of four colorants in drink.< 
Sunset Yellow; tartrazine; allura red; caramel; principal component regression; chemometric approaches