Infant formula and adult nutritionals Determination of vitamin E and vitamin A by normal phase high performance liquid chromatography

Available format(s)

Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users

Language(s)

French, English

Published date

09-11-2015

Publisher

International Organization for Standardization

ISO 20633:2015 specifies a method for the simultaneous quantitative determination of vitamin E (-tocopherol and -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, -tocopherol and -tocopheryl acetate, are not differentiated in this method.

DevelopmentNote	Supersedes ISO/DIS 20633. (11/2015)
DocumentType	Standard
Pages	25
PublisherName	International Organization for Standardization
Status	Current

Standards	Relationship
BS ISO 20633:2015	Identical
NF ISO 20633 : 2016	Identical
NEN ISO 20633 : 2015	Identical

ISO 5725-2:1994	Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method
EN 12822:2014	Foodstuffs - Determination of vitamin E by high performance liquid chromatography - Measurement of α-, β-, γ- and δ-tocopherol