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4th order derivative spectrophotometric determination of quinine in soft drinks

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Abstract

A method is developed for the 4rd order derivative spectrophotometric determination of down to 1–6 μg/ml of quinine. This method has been applied to its determination in soft drinks. Comparison are made between this method and a spectrofluorimetric method.

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Authors and Affiliations

  1. Department of Analytical Chemistry, Food Science and Toxicology, University of La Laguna, E-38204-La, Laguna, Spain

    Juana C. García Castro, Maria J. Sánchez, Miguel A. Rodríguez Delgado & Carlos Díaz Romero

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  1. Juana C. García Castro
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  2. Maria J. Sánchez
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  3. Miguel A. Rodríguez Delgado
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  4. Carlos Díaz Romero
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García Castro, J.C., Sánchez, M.J., Rodríguez Delgado, M.A. et al. 4th order derivative spectrophotometric determination of quinine in soft drinks. Mikrochim Acta 110, 263–268 (1993). https://doi.org/10.1007/BF01245110

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