Comparison of extraction techniques and mass spectrometric ionization modes in the analysis of wine volatile carbonyls

Analytica Chimica Acta
Julián ZapataVicente Ferreira

Abstract

This work presents a comparative study of the analytical characteristics of two methods for the analysis of carbonyl compounds in wine, both based on the derivatization with O-(2,3,4,5,6-pentafluorobenzyl)hydroxylamine hydrochloride (PFBHA). In the first method derivatives are formed in the solid phase extraction (SPE) cartridge in which the analytes have been previously isolated, while in the second method derivatives are formed in a solid phase microextraction (SPME) fibre saturated with vapors of the reagent and exposed to the sample headspace. In both cases detection has been carried out by electron impact (EI) or negative chemical ionization (NCI) mass spectrometry. The possibility of determining haloanisols simultaneously has been also considered. The method based on SPE presents, in general, better analytical properties than the SPME one. Although linearity was satisfactory for both methods (R(2)>0.99), repeatability of the SPE method (RSD<10%) was better than that obtained with SPME (9% < RSD < 20%). Detection limits obtained with EI are better for the SPE method except for trihaloanisols, while with NCI detection limits for both strategies are comparable, although the SPME strategy presents worse results for ketones an...Continue Reading

References

Jul 29, 1993·The New England Journal of Medicine·C A Blau

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Citations

Apr 7, 2012·Journal of Agricultural and Food Chemistry·Felipe San JuanAna Escudero
Dec 23, 2014·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Annarita Panighel, Riccardo Flamini
Mar 31, 2012·Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences·Yun-Gon KimYung-Hun Yang
Aug 19, 2015·Analytical and Bioanalytical Chemistry·Elisa Gracia-MorenoVicente Ferreira
Oct 27, 2015·Journal of Analytical Methods in Chemistry·Giuseppina NegriElisaldo Luiz de Araujo Carlini
Oct 16, 2014·Journal of the Science of Food and Agriculture·Enrique Durán-GuerreroClaudio Riponi
May 16, 2015·Critical Reviews in Food Science and Nutrition·Samar Azzi-AchkoutyDouglas N Rutledge
Jan 28, 2015·Food Chemistry·Clara DombrePascale Chalier
Oct 7, 2014·Journal of Agricultural and Food Chemistry·Vicente FerreiraPurificación Fernández-Zurbano
Nov 30, 2012·Se pu = Chinese journal of chromatography·Xi TangJiamin Chen

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