Determination of major compounds in sweet wines by headspace solid-phase microextraction and gas chromatography

被引：42
|
作者：
Rodríguez-Bencomo, JJ [1 ]
Conde, JE [1 ]
García-Montelongo, F [1 ]
Pérez-Trujillo, JP [1 ]
机构：
[1] Univ La Laguna, Dept Analyt Chem Nutr & Food Sci, Tenerife 38201, Spain
来源：
JOURNAL OF CHROMATOGRAPHY A | 2003年 / 991卷 / 01期
关键词：
wine; headspace analysis; solid-phase microextraction; volatile organic compounds; MASS-SPECTROMETRY; VOLATILE COMPOUNDS; SULFUR-COMPOUNDS; AROMA; DISULFIDES; SULFIDES; 3-ALKYL-2-METHOXYPYRAZINES; OPTIMIZATION; RESIDUES; FIBERS;
D O I：
10.1016/S0021-9673(03)00211-5
中图分类号：
Q5 [生物化学];
学科分类号：
071010 ; 081704 ;
摘要：
Headspace solid-phase microextraction (HS-SPME) was studied by high resolution gas chromatographic analysis of major compounds (ethyl acetate, methanol, 1-butanol, 2-butanol, 1-propanol, isobutanol, 2-methyl-1-butanol and 3-methyl-1-butanol) in sweet wines. Five different SPME fibres were tested and the influence of different factors such as temperature and time of desorption, extraction time, stirring, sample and vial volume, sugar and ethanol content were studied and optimized using model solutions. The SPME method was validated with the direct injection method. The proposed HS-SPME-GC method is an appropriate technique for the quantitative analysis of the mentioned analytes in real sweet wines. (C) 2003 Published by Elsevier Science B.V.
引用
收藏
页码：13 / 22
页数：10
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