| Title: | "Headspace solid-phase microextraction for the determination of volatile organic sulphur and selenium compounds in beers, wines and spirits using gas chromatography and atomic emission detection" |
| Author(s): | Campillo N; Penalver R; Lopez-Garcia I; Hernandez-Cordoba M; |
| Address: | "Department of Analytical Chemistry, Faculty of Chemistry, University of Murcia, E-30071 Murcia, Spain" |
| DOI: | 10.1016/j.chroma.2009.08.019 |
| ISSN/ISBN: | 1873-3778 (Electronic) 0021-9673 (Linking) |
| Abstract: | "A rapid and solvent-free method for the determination of eight volatile organic sulphur and two selenium compounds in different beverage samples using headspace solid-phase microextraction and gas chromatography with atomic emission detection has been developed. The bonded carboxen/polydimethylsiloxane fiber was the most suitable for preconcentrating the analytes from the headspace of the sample solution. Volumes of 20 mL of undiluted beer were used while, in the case of wines and spirits, sample:water ratios of 5:15 and 2:18, respectively, were used, in order to obtain the maximum sensitivity. Quantitation was carried out by using synthetic matrices of beer and wine, and a spiked sample for spirits, and using ethyl methyl sulphide and isopropyl disulphide as internal standards. Detection limits ranged from 8 ng L(-1) to 40 ng mL(-1), depending on the compound and the beverage sample analyzed, with a fiber time exposure of 20 min at ambient temperature. The optimized method was successfully applied to different samples, some of the studied compounds being detected at concentration levels in the 0.04-152 ng mL(-1) range" |
| Keywords: | "Alcoholic Beverages/*analysis Chromatography, Gas/instrumentation/*methods Selenium Compounds/*chemistry Solid Phase Microextraction/*methods Sulfur Compounds/*chemistry Volatilization Wine/analysis;" |
| Notes: | "MedlineCampillo, Natalia Penalver, Rosa Lopez-Garcia, Ignacio Hernandez-Cordoba, Manuel eng Evaluation Study Research Support, Non-U.S. Gov't Netherlands 2009/08/25 J Chromatogr A. 2009 Sep 25; 1216(39):6735-40. doi: 10.1016/j.chroma.2009.08.019. Epub 2009 Aug 13" |
