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Gas chromatography-mass spectrometry strategies for the accurate and sensitive speciation of sulfur dioxide in wine.
Understanding the chemistry of wine oxidation requires the accurate and sensitive quantitative determination of the most important molecular species which SO2 can form. An analytical strategy basedExpand
Gas chromatographic-sulfur chemiluminescent detector procedures for the simultaneous determination of free forms of volatile sulfur compounds including sulfur dioxide and for the determination of
Three different procedures for the quantitative assessment of free and metal complexed volatile sulfur compounds (VSCs) and for the determination of truly free SO2 have been developed, takingExpand
Straightforward strategy for quantifying rotundone in wine at ngL(-1) level using solid-phase extraction and gas chromatography-quadrupole mass spectrometry. Occurrence in different varieties of
This paper presents a straightforward methodology to quantify rotundone in wine at ngL(-1) level. This compound, responsible for the black pepper aromatic note, may have sensorial relevance in someExpand
Determination of ppq-levels of alkylmethoxypyrazines in wine by stirbar sorptive extraction combined with multidimensional gas chromatography-mass spectrometry.
Alkylmethoxypyrazines are powerful odorants in many food products. A new method for analysing 3-isopropyl-2-methoxypyrazine, 3-s-butyl-2-methoxypyrazine and 3-isobutyl-2-methoxypyrazine has beenExpand
Application of a new sampling device for determination of volatile compounds released during heating olive and sunflower oil: sensory evaluation of those identified compounds
This work has applied a system for characterizing volatile compounds generated during the heating of oils, based on solid-phase extraction–gas chromatography–mass spectrometry. The system has beenExpand
A modified commercial gas chromatograph for the continuous monitoring of the thermal degradation of sunflower oil and off-line solid phase extraction gas-chromatography-mass spectrometry
A homemade flow cell attached to a commercial Gas Chromatograph equipped with a Flame Ionization Detector (FID) has been designed for the continuous monitoring of volatile compounds released duringExpand
Liquid Chromatography-Mass Spectrometry-Based Metabolomics for Understanding the Compositional Changes Induced by Oxidative or Anoxic Storage of Red Wines.
The aim of this work was to study the physicochemical changes of eight red wines stored under conditions differing in O2 exposure and temperature and time under anoxia. The methods used to analyzeExpand
Histamine accumulation in dairy products: Microbial causes, techniques for the detection of histamine-producing microbiota, and potential solutions.
Histamine poisoning is a significant public health and safety concern. Intoxication from ingestion of food containing high amounts of histamine may cause mild or severe symptoms that can evenExpand
Novel GC-MS strategies for the accurate and sensitive speciation of SO2 in wine
Trabajo presentado en la XVI Reunion Cientifica de la Sociedad Espanola de Cromatografia y Tecnicas Afines (SECyTA 2016), celebrada en Sevilla del 2 al 4 de noviembre de 2016.