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Analysis of heterocyclic amines in food products: interlaboratory studies

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Author

  • F J Santos
  • E Barcelo-Barrachina
  • E Toribio
  • L Puignou
  • M T Galceran
  • Elna Hallgard
  • Kerstin Skog
  • C Messner
  • M Murkovic
  • U Nabinger
  • A Ristic
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Summary, in English

A feasibility study and two interlaboratory exercises on the determination of selected heterocyclic amines (HAs) in beef extract, organised in the framework of a European project, are presented. The aim of these exercises was to improve the quality of the laboratories and to evaluate the performance of a standardised analytical method and also the methods currently used by each of the participants for the analysis of these compounds. Three lyophilised portions of a commercial beef material previously spiked with HAs at different concentration levels ranging from 10 to 75 ng g(-1) were used as laboratory reference materials (lot A, B and C). Firstly, a feasibility study was carried out using a test standard solution and the beef extract (lot A), which contained only five HAs. Then, two interlaboratory exercises were carried out using the laboratory reference materials lot B and lot C, containing 10 selected HAs at two different concentration levels, 75 and 10ng/g, respectively. The results obtained by all participant laboratories using the proposed method showed satisfactory agreement and the CV(%) between-laboratories obtained were from 8.3 to 24.1% for lot B and from 8.7 to 44.5% for lot C. The standardised method evaluated in these collaborative studies is therefore proposed for the analysis of HAs in food material. Moreover, LC-MS is recommended as the most suitable technique for the analysis of a large number of HAs in food samples. (C) 2003 Elsevier B.V All rights reserved.

Publishing year

2004

Language

English

Pages

69-78

Publication/Series

Journal of Chromatography. B

Volume

802

Issue

1

Document type

Journal article

Publisher

Elsevier

Topic

  • Nutrition and Dietetics

Keywords

  • Inter-laboratory studies
  • Food analysis
  • Heterocyclic aromatic amines

Status

Published

ISBN/ISSN/Other

  • ISSN: 1873-376X