标准摘要
[中文适用范围]： 本国际标准规定了同时定量测定所有形式的婴儿和成人配方奶粉（粉剂、即食液体和浓缩液体）中维生素E（α-生育酚和α-生育酚乙酸酯）和维生素A（视黄醇棕榈酸酯和视黄醇乙酸酯的13-顺式和全反式异构体）的方法。视黄醇不用于强化目的，因此本方法不涉及。产品中的天然含量微乎其微。 [外文原描述]： ISO 20633:2015 specifies a method for the simultaneous quantitative determination of vitamin E (α-tocopherol and α-tocopheryl acetate) and vitamin A (13- cis and all- trans isomers of retinyl palmitate and retinyl acetate) present in all forms of infant and adult formulas (powders, ready-to-feed liquids and liquid concentrates). Retinol is not used for fortification purposes and therefore is not addressed in this method. The innate amount in products is insignificant. Stereoisomers of vitamin E, α-tocopherol and α-tocopheryl acetate, are not differentiated in this method.
英文名称Infant formula and adult nutritionals — Determination of vitamin E and vitamin A by normal phase high performance liquid chromatography