Vyviurska, Olga published the artcileMultivariate optimization of dual-sorbent dynamic headspace extraction of volatiles in wine analysis, Synthetic Route of 106-32-1, the main research area is linalool oxide ethyl phenylacetate gamma hexalactone wine headspace extraction; Dynamic headspace extraction; Gas chromatography; Multivariate optimization; Tokaj region; Wine analysis.
The main critical point of newly developed miniaturized sample preparation techniques is a limited extraction capacity. Dynamic headspace extraction offers increased volume of sorbent which is commonly used in environmental anal. Application of two sorbents (Carbopack B/Carbopack X and Tenax TA) at different extraction temperatures allows enhancing a range of volatile organic compounds available for anal. Such approach was applied in our research for quantification of volatile organic compounds in botrytized wines with gas chromatog. The central composite design was included to anal. simultaneous effects of incubation time, incubation temperature, purge volume and purge flow. In attempt to properly assess results, the data evaluation involved Pareto charts, surface response methodol. and principal component anal. Multivariate exptl. design revealed statistical significance of purge volume and quadratic terms of incubation time and temperature, for response of volatiles. The quantification method with 0.2-2.0μg/L LOD and 0.5-5.0μg/L LOQ values, was developed under simultaneously optimized exptl. conditions such as a 54°C incubation temperature, a 20.18 min incubation time, a 344.3 mL purge volume and a 16.0 mL/min purge flow. The increased levels of linalool oxide, Et phenylacetate, γ-hexalactone and α-terpineol were observed in the samples, that correlated with botrytized wine technol.
Food Chemistry published new progress about Alcohols Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 106-32-1 belongs to class esters-buliding-blocks, name is Ethyl octanoate, and the molecular formula is C10H20O2, Synthetic Route of 106-32-1.
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