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Simultaneous Determination of Anthocyanin and Ponceau 4R in Drink Powders by Derivative Spectrophotometry and Partial Least-Squares Multivariate Spectrophotometric Calibration

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Summary.

 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.

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Authors and Affiliations

  1.  Yıldız Technical University, Department of Chemistry, TR-34210 İstanbul, Turkey, , , , , , TR

    Mahmure Ü. Özgür, Abdürrezzak Bozdoğan & İkbal Koyuncu

  2.  İstanbul University, Engineering Faculty, Department of Chemistry, TR-34850 İstanbul, Turkey, , , , , , TR

    Ayşe Erçağ

Authors
  1. Mahmure Ü. Özgür
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  2. Abdürrezzak Bozdoğan
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  3. Ayşe Erçağ
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  4. İkbal Koyuncu
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Received September 7, 2000. Accepted (revised) November 20, 2000

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Özgür, M., Bozdoğan, A., Erçağ, A. et al. Simultaneous Determination of Anthocyanin and Ponceau 4R in Drink Powders by Derivative Spectrophotometry and Partial Least-Squares Multivariate Spectrophotometric Calibration. Monatshefte fuer Chemie 132, 669–673 (2001). https://doi.org/10.1007/s007060170080

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  • DOI: https://doi.org/10.1007/s007060170080

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