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BS EN 16466-1:2013

BS EN 16466-1:2013

$102.76

Vinegar. Isotopic analysis of acetic acid and water – 2H-NMR analysis of acetic acid

Published By Publication Date Number of Pages
BSI 2013 16
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This European Standard specifies an isotopic method to control the authenticity of vinegar. This method is applicable on acetic acid of vinegar (from wine, cider, agricultural alcohol, etc.) in order to characterise the botanical origin of acetic acid and to detect adulterations of vinegar using synthetic acetic acid or acetic acid from a non-allowed origin (together with the method described in EN 16466-2).

The isotopic analysis of the extracted acetic acid by 2H-NMR is based on a similar method already normalised for wine analysis [2].

This European Standard is not applicable to complex matrices made with vinegar as an ingredient, such as balsamic vinegar.

PDF Catalog

PDF Pages PDF Title
4 Contents Page
5 Foreword
6 Introduction
7 1 Scope
2 Normative references
3 Principle
4 Reagents
4.1 Diethyl ether
4.2 Standard N,N-tetramethylurea (TMU)
4.3 Hexafluorobenzene (C6F6)
8 5 Apparatus
5.1 For the extraction of acetic acid from vinegar
5.2 For 2H-SNIF-NMR determination of acetic acid from vinegar
6 Procedure
6.1 Extraction of acetic acid from vinegar
6.1.1 Liquid-liquid extraction
9 6.1.2 Purification of the extract
6.1.3 Determination of the residual water content
6.2 2H-SNIF-NMR determination of acetic acid from vinegar
6.2.1 NMR preparation
6.2.2 Acquisition of 2H-SNIF-NMR spectra
10 6.2.3 Calculations and expression of the result
7 Precision
7.1 General
7.2 Repeatability
7.3 Reproducibility
11 8 Test report
12 Annex A (informative) Results of the collaborative study (2009)
13 Bibliography

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BS EN 16466-1:2013
$102.76