BS ISO 18363-3:2017
$142.49
Animal and vegetable fats and oils. Determination of fatty-acid-bound chloropropanediols (MCPDs) and glycidol by GC/MS – Method using acid transesterification and measurement for 2-MCPD, 3-MCPD and glycidol
Published By | Publication Date | Number of Pages |
BSI | 2017 | 28 |
This document specifies a procedure for the simultaneous determination of 2-MCPD esters (bound 2-MCPD), 3‐MCPD esters (bound 3‐MCPD) and glycidyl esters (bound glycidol) in a single assay, based on acid catalysed ester cleavage and derivatization of cleaved (free) analytes with phenylboronic acid (PBA) prior to GC/MS analysis.
This document is applicable to solid and liquid fats and oils. For all three analytes the limit of quantification (LOQ) is 0,1 mg/kg and the limit of detection (LOD) is 0,03 mg/kg.
PDF Catalog
PDF Pages | PDF Title |
---|---|
2 | National foreword |
6 | Foreword |
7 | Introduction |
9 | 1 Scope 2 Normative references 3 Terms and definitions |
10 | 4 Principle 5 Reagents 5.1 Standard and reference compounds |
11 | 5.2 Standard solutions 5.2.1 General 5.2.2 Stock solutions (1 mg/ml) 5.2.3 Working solutions |
12 | 5.3 Other reagents 5.4 Reagent solutions |
13 | 6 Apparatus 7 Sample 7.1 Sampling 7.2 Preparation of the test sample |
14 | 8 Procedure 8.1 Test sample preparation |
15 | 8.2 Preparation of the calibration curve 8.3 Gas chromatography/mass spectrometry references |
16 | 9 Expression of results 9.1 Quantification of 3-MCPD esters |
17 | 9.2 Quantification of 2-MCPD esters 9.3 Quantification of glycidyl esters |
18 | 10 Precision 10.1 General 10.2 Repeatability 10.3 Between-day reproducibility 11 Test report |
20 | Annex A (informative) Construction of the calibration curves |
24 | Annex B (informative) Results of the interlaboratory test |
26 | Bibliography |