ISO 15141:2018
Cereals and cereal products — Determination of ochratoxin A — High performance liquid chromatographic method with immunoaffinity column cleanup and fluorescence detection
This document specifies a high performance liquid chromatographic method with immunoaffinity column cleanup for the determination of ochratoxin A in cereals and cereal products.
The limit of quantification is 0,2 μg/kg. The method detection limit is dependent on the sample matrix as well as on the instrument.
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents
6 Apparatus and equipment
7 Procedure
7.1 General
7.2 Sampling
7.3 Preparation of the test samples
7.4 Extraction of ochratoxin A from the sample
7.4.1 Extraction
7.4.2 Dilution
7.5 Immunoaffnity column cleanup
7.6 HPLC operating conditions
7.7 Calibration graph
7.8 Identification
7.9 Determination
7.10 Confirmation
8 Calculation
9 Precision
9.1 General
9.2 Repeatability
9.3 Reproducibility
10 Test report
Annex A (informative) Results of interlaboratory tests
Bibliography
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents
6 Apparatus and equipment
7 Procedure
7.1 General
7.2 Sampling
7.3 Preparation of the test samples
7.4 Extraction of ochratoxin A from the sample
7.4.1 Extraction
7.4.2 Dilution
7.5 Immunoaffnity column cleanup
7.6 HPLC operating conditions
7.7 Calibration graph
7.8 Identification
7.9 Determination
7.10 Confirmation
8 Calculation
9 Precision
9.1 General
9.2 Repeatability
9.3 Reproducibility
10 Test report
Annex A (informative) Results of interlaboratory tests
Bibliography