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Determination of energizers in energy drinks

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Abstract

The method of UV/VIS derivative spectrophotometry for the determination of caffeine and B vitamins in energy drinks after solid phase extraction has been developed. Caffeine has been determined in the mixture with B2 vitamin with zero-crossing technique from the I derivative spectra (λ = 266.8 nm), and B3 in mixture with B6 vitamin from the II derivative spectra (λ = 280.1 nm). B12 vitamin has also been determined in a three-component mixture with vitamins B3 and B6. Taurine in drinks has been determined from the basic spectra after derivatization with ninhydrin (λ = 570 nm).

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Authors and Affiliations

  1. Department of Analytical Chemistry, Silesian Technical University, 7 M. Strzody Str., Gliwice, 44-100, Poland

    C. Pieszko, I. Baranowska & A. Flores

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  1. C. Pieszko
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  2. I. Baranowska
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  3. A. Flores
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Pieszko, C., Baranowska, I. & Flores, A. Determination of energizers in energy drinks. J Anal Chem 65, 1228–1234 (2010). https://doi.org/10.1134/S1061934810120051

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  • DOI: https://doi.org/10.1134/S1061934810120051

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