Abstract
A thin layer flow cell with cell volume of 8 μl was constructed. Diffusion currents of ascorbic acid was directly proportional to the 1/3 power of volume flow rates. A linear dynamic range was obtained at the concentration range between 10−7 M and 10−4 M of ascorbic acid with a detection limit of 10−8 M. Ascorbic acid in the multivitamin product was amperometrically determined at TLFC after simply dissolving mg range ground product in 100ml of pH 7.0 phosphate buffer.
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Hahn, Y. Amperometric determination of ascorbic acid at a thin layer flow cell. Arch. Pharm. Res. 11, 56–60 (1988). https://doi.org/10.1007/BF02884769
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DOI: https://doi.org/10.1007/BF02884769