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A method of quickly determining ascorbic acid and sorbic acid by capillary zone electrophoresis with ultraviolet detection was developed. The choice of background electrolyte, wavelength, injection time and applied voltage were discussed. Ascorbic acid and sorbic acid were well separated in 80mmolL −1 boric acid–5mmolL −1 borax (pH = 8.0) in 5min at the detecting wavelength of 270nm...
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