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BS ISO 20634:2015

BS ISO 20634:2015

$142.49

Infant formula and adult nutritionals. Determination of vitamin B12 by reversed phase high performance liquid chromatography (RP-HPLC)

Published By Publication Date Number of Pages
BSI 2015 24
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This International Standard specifies a method for the quantitative determination of vitamin B12 in infant and adult formula (powders, ready-to-feed liquids and liquid concentrates) by reversed phase high performance liquid chromatography.

PDF Catalog

PDF Pages PDF Title
6 Foreword
7 1 Scope
2 Terms and definitions
3 Principle
4 Reagents and materials
10 5 Apparatus
11 6 Procedure
6.1 General
6.2 Sample preparation
6.2.1 General
12 6.2.2 Extraction
6.2.3 Sample concentration
13 6.3 HPLC analysis
6.3.1 System setup and configuration
6.3.2 Instrument operation conditions
14 7 Calculations
7.1 General
15 7.2 Calculation of standard solution concentrations
7.3 Preparation of standard curves
7.4 Calculation of vitamin B12 concentrations in sample solutions
16 Annex A (informative) Examples of chromatograms
17 Annex B (informative) Precision data
19 Annex C (informative) Example of SPE cartridge qualification procedure
20 Bibliography

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BS ISO 20634:2015
$142.49