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See Chinese contents: GB 5009.89-2023 GB 5009.89-2023: National food safety standard - Determination of niacin and niacinamide in foods
This Standard specifies the methods for the determination of niacin and niacinamide in foods. In this Standard, Method 1 is applicable to the determination of niacin and niacinamide in prepared milk powder, special dietary foods (excluding partially hydrolyzed milk protein formulas, deeply hydrolyzed milk protein formulas or amino acid formulas, and infant formulas for special medical purposes for amino acid metabolism disorders) and special-purpose beverages. Method 2 is applicable to the determination of niacin (or niacinamide) in foods. Method I - High Performance Liquid Chromatography
