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Kelly J, Chapman S, Brereton P, Bertrand A, Guillou C, Wittkowski R, Lenartowicz P, Kiddie R, Durante P, Garcia A, Maignial L, Williams M, Low AD, Vidal JP, Richards AT, Bourrier M, Cuatero M, Grimm M, Lees M, Lamoureux T, Smith P, Swanson W, Smith A, Davies RJ, Wardle K, Terwel L, Lopes JMS, Clutton D, Williams M, Hampton IJ, Maynard P, Hiero JRG, Frank W, Bauer-Christoph C, Klingemann K, Senf DR, Liadouze I, Spyridon Bolkas M, Martin JD, Valcarcel Munoz MJ, Conchie EC, Malandain A, Leclerc A, Pineau M, Barboteau P, Lafage M, Laurichesse D, Airchinnigh MNA, McGowan S, Cresto B, Bossard A. Gas Chromatographic Determination of Volatile Congeners in Spirit Drinks: Interlaboratory Study. J AOAC Int 2020. [DOI: 10.1093/jaoac/82.6.1375] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Abstract
An interlaboratory study of a gas chromatographic (GC) method for the determination of volatile congeners in spirit drinks was conducted; 31 laboratories from 8 countries took part in the study. The method uses GC with flame ionization detection and incorpo rates several quality control measures which permit the choice of chromatographic system and conditions to be selected by the user. Spirit drink samples were prepared and sent to participants as 10 blind duplicate or split-level test materials for the determination of 1,1-diethoxyethane (acetal), 2-methylbutan-1-ol (active amyl alcohol), 3-methylbutan-1-ol (isoamyl alcohol), methanol (methyl alcohol), ethyl ethanoate (ethyl acetate), butan-1-ol (n-butanol), butan-2-ol (sec-butanol), 2-methylpropan-1-ol(isobutyl alcohol), propan-1-ol (n-propanol), and ethanal (acetaldehyde). The precision of the method for 9 of the 10 analytes was well within the range predicted by the Horwitz equation.The precision of the most volatile analyte, ethanal, was just above statistically predicted levels. This method is recommended for official regulatory purposes.
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Affiliation(s)
- Janet Kelly
- Ministry of Agriculture, Fisheries and Food, CSL Food Science Laboratory, Norwich Research Park, Colney, Norwich, NR4 7UO. UK
| | - Stephen Chapman
- Ministry of Agriculture, Fisheries and Food, CSL Food Science Laboratory, Norwich Research Park, Colney, Norwich, NR4 7UO. UK
| | - Paul Brereton
- Ministry of Agriculture, Fisheries and Food, CSL Food Science Laboratory, Norwich Research Park, Colney, Norwich, NR4 7UO. UK
| | - Alain Bertrand
- University of Bordeaux 2, Faculté d’OEnologie, 351, Cours de la Liberation, 33405 Talence cedex, France
| | - Claude Guillou
- European Commission, Joint Research Centre, Environment Institute, Food & Drug Analysis/Consumer Protection Unit, BEVABS Laboratory, 1-21020 Ispra (Va), Italy
| | - Reiner Wittkowski
- Bundesinstitut fur Gesundheitlichen Verbraucherschutz und Veterinarmedizin (bgvv), Thielallee 88-92, D-14195, Berlin, Germany
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