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


Ozgur M. , Bozdogan A. E. , ERCAG A., Koyuncu I.

MONATSHEFTE FUR CHEMIE, cilt.132, ss.669-673, 2001 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 132 Konu: 6
  • Basım Tarihi: 2001
  • Doi Numarası: 10.1007/s007060170080
  • Dergi Adı: MONATSHEFTE FUR CHEMIE
  • Sayfa Sayıları: ss.669-673

Özet

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.