Paper Information

Journal:   DARU JOURNAL OF PHARMACEUTICAL SCIENCE   2003 , Volume 11 , Number 1; Page(s) 1 To 6.
 
Paper: 

SIMULTANEOUS SPECTROPHOTOMETRIC DETERMINATION OF MIXTURES OF FOOD COLORANTS

 
 
Author(s):  OVEYSI M.R.*, HAJI MAHMOUDI MANAN, DAVAMI F.
 
* FACULTY OF PHARMACY, TEHRAN UNIVERSITY OF MEDICAL SCIENCES, TEHRAN, IRAN
 
Abstract: 

Mixtures of food colorants, containing new coccine, ponceaue 6R and scarlet GN were simultaneously analyzed by spectrophotometry without previous chemical separation. Sixty mixtures of colorants with three-components were evaluated and the spectrograms were smoothed through the use of seven experimental points. The multivariate data consisted of normal, first- and second-derivative absorbance spectra (λ=5 nm) registered from 300-650 nm. The data obtained from experiments were processed by PLS method and the proposed method was applied satisfactorily for determination of these colorants in two commercial food products.

 
Keyword(s): COLORANTS, CHEMOMETRICS, DERIVATIVE TECHNIQUE, SPECTROPHOTOMETRY
 
References: 
 
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