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See Chinese contents: SN/T 0869-2017 SN/T 0869-2017: Determination of ascorbic acid in beverage for export
The standard specifies the method for the determination of ascorbic acid in beverages for export, by high performance liquid chromatography and fluorescence method. The first method of this standard is applicable to the determination of total L(+)-ascorbic acid and D(+)-ascorbic acid in beverages for export. The second method is applicable to the determination of the total amount of L(+)-ascorbic acid in beverages for export.
