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oai:docta.ucm.es:20.500.14352/930302025-03-18T13:45:33Zcom_20.500.14352_14col_20.500.14352_15

Determination of major compounds in sweet wines by headspace solid-phase micro-extraction and gas chromatography Rodríguez Bencomo, Juan José Conde, José García-Montelongo, Francisco Pérez Trujillo, Francisco Javier 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 2024-01-15T11:14:58Z 2024-01-15T11:14:58Z 2024-01-15T11:14:58Z 2003 journal article https://hdl.handle.net/20.500.14352/93030 0021-9673 10.1016/S0021-9673(03)00211-5 eng (project PI 2000/089) Rodrı́guez-Bencomo, Juan J., et al. «Determination of Major Compounds in Sweet Wines by Headspace Solid-Phase Microextraction and Gas Chromatography». Journal of Chromatography A, vol. 991, n.o 1, marzo de 2003, pp. 13-22. https://doi.org/10.1016/S0021-9673(03)00211-5. restricted access Elvevier