Simultaneous Determination of the Colorants Sunset Yellow FCF and Quinoline Yellow by Solid-phase Spectrophotometry Using Partial Least Squares Multivariate Calibration

Abstract

A method for the simultaneous determination of the colorants Sunset Yellow FCF and Quinoline Yellow using solid-phase spectrophotometry is proposed. The colorants were isolated in Sephadex DEAE A-25 gel at pH 5.0, the gel–colorants system was packed in a 1 mm silica cell and spectra were recorded between 400 and 600 nm against a blank. Statistical results were obtained by partial least squares (PLS) multivariate calibration. The optimized matrix by using the PLS-2 method enables the determination of the colorants in artificial mixtures and commercial soft drinks.

References

1. M. Hanssen and J. Marsden, E for Additives, Thorson Publishers, Northamptonshire, 1984.
2. Diario Oficial de las Comunidades Europeas, Madrid, Spain, 1962, 13/vol 01, pp. 3–12.
3. Code of Federal Regulations, FDA, USA, 1985, Parts 1–99, Sect. 74.1710 (b), p. 307.
4. Ministerio de Sanidad y Consumo, Lista Positiva de Aditivos Alimentarios, vol. II, 1989, p. 20.
5. J. J. Berzas Nevado, J. Rodriguez and M. J. Villaseñor, Anal. Lett., 1994, 27, 1009.
6. J. A. Jeransian, K. G. Sloman and A. K. Foltz, Anal. Chem., 1985, 57, 278R.
7. R. B. Patel, M. R. Patel, A. A. Patel, A. K. Shah and A. G. Patel, Analyst, 1986, 111, 577.
8. A. Pnina, Y. Chain and M. Cais, Anal. Chim. Acta, 1991, 248, 289.
9. G. M. Greenway, N. Kometa and R. Macree, Food Chem., 1992, 43, 137.
10. M. L. Putteman, I. Dryon and D. L. Massart, J. Assoc. Off. Anal. Chem., 1981, 64, 1.
11. M. H. Salagoity, A. Bertrand and P. Sudran, Sci. Aliments, 1983, 3, 127.
12. A. Araújo Barros, Analyst, 1987, 112, 1359.
13. A. G. Fogg, A. A. Barros and J. O. Cabral, Analyst, 1986, 111, 831.
14. F. Becerro, F. Gonzalez and J. Hernandez, Talanta, 1990, 37, 665.
15. H. Wold, Research Papers in Statistics, ed. Willey, D. F., New York, 1966, pp. 411–444.
16. S. Wold, Food Research and Data Analysis, ed. Martens H., and Russwurm, H., Applied Science Publishers, London, 1983.
17. S. Wold, H. Martens and H. Wold, The Multivariate Calibration Problem in Chemistry Solved by PLS, ed. Ruhe, A., and Kagstrom, B., Springer, Heidelberg, 1983, pp. 286–293.
18. I. Durán-Merás, A. Muñoz de la Peña, A. Espinosa-Mansilla and F. Salinas, Analyst, 1993, 118, 807.
19. A. Espinosa-Mansilla, F. Salinas and I. de Orbe, Fresenius' J. Anal. Chem., 1996, 354, 245.
20. A. Espinosa-Mansilla, F. Salinas and A. Zamoro, Analyst, 1994, 119, 1183.
21. A. Espinosa-Mansilla, A. Muñoz de la Peña and F. Salinas, Anal. Chim. Acta., 1993, 276, 141.
22. M. Stone, J. R. Stat. Soc., B, 1974, 36, 111.
23. D. M. Haaland and E. V. Thomas, Anal. Chem., 1988, 60, 1193.
24. J. F. Lawrence, F. E. Lancaster and B. S. Conacher, J. Chromatogr., 1981, 210, 168.