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KMID : 0043319880110010056
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Archives of Pharmacal Research
1988 Volume.11 No. 1 p.56 ~ p.60
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Amperometric Determination of Ascorbic Acid at a Thin Layer Flow Cell
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Hahn YH
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Abstract
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A thin layer flow cell with cell volume of 8mcl 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 10-7M and 10-4M of ascorbic acid with a detection limit of 10-8M. 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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