BS ISO 20633:2015
Current
The latest, up-to-date edition.
Infant formula and adult nutritionals. Determination of vitamin E and vitamin A by normal phase high performance liquid chromatography
Hardcopy , PDF
English
30-11-2015
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Foreword
1 Scope
2 Terms and definitions
3 Principle
4 Reagents and materials
5 Apparatus
6 Procedure
7 System suitability
8 Calculations
Annex A (informative) - Examples of chromatograms
Annex B (informative) - Precision data
Annex C (informative) - Comparison between AOAC 2012.10,
EN 12822 and EN 12823-1
Bibliography
Defines a method for the simultaneous quantitative determination of vitamin E (alpha-tocopherol and alpha-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).
| Committee |
AW/34
|
| DevelopmentNote |
Supersedes 15/30324769 DC. (12/2015)
|
| DocumentType |
Standard
|
| Pages |
32
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
This International Standard 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.
| Standards | Relationship |
| 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 |
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