ISO-20635 › Infant formula and adult nutritionals - Determination of vitamin C by (ultra) high performance liquid chromatography with ultraviolet detection ((U)HPLC-UV)

ISO-20635 - 1ST EDITION - CURRENT


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This document specifies a method for the determination of vitamin C (L-ascorbic acid) present in all forms of infant and adult formulas (powders, ready-to-feed liquids and liquid concentrates), using (ultra) high performance liquid chromatography with ultraviolet detection (U)HPLC-UV. The application range runs from 2,5 mg/100 g (limit of quantification) to 50 mg/100 g expressed in the product as consumed. The method is able to distinguish between D-ascorbic acid (isoascorbic- or erythorbic acid) and L-ascorbic acid.

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67.050 (General methods of tests and analysis for food products Food microbiology, see 07.100.30 Sensory analysis, see 67.240)

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Document Number

ISO 20635:2018

Revision Level

1ST EDITION

Status

Current

Publication Date

July 1, 2018

Committee Number

ISO/TC 34