TITLE

Application of solid-phase extraction for determination of phenolic compounds in barrique wines

AUTHOR(S)
Matej�cek, D.; Klejdus, B.; Mike�, O.; �terbov�, D.; Kub�n, V.
PUB. DATE
September 2003
SOURCE
Analytical & Bioanalytical Chemistry;Sep2003, Vol. 377 Issue 2, p340
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A fast, selective and sensitive chromatographic method has been developed for determination of gallic, protocatechuic, p-hydroxybenzoic, vanillic, caffeic, syringic, p-coumaric, benzoic, ferulic, sinapic, cinnamic, and ellagic acids and p-hydroxybenzaldehyde, vanillin, syringaldehyde, 2-furfural, 5-methylfurfural, and 5-methoxyfurfural. The compounds from untreated wine samples were pre-concentrated and cleaned using solid-phase extraction on RP-105 polymeric sorbent. The cartridge was conditioned with methanol and water. Co-extracted ballast substances were rinsed from the sorbent with 0.1 mol L-1 hydrochloric acid�methanol, 1:4 (v/v). Retained phenolic compounds were selectively eluted with diethyl ether. A linear mobile phase gradient containing 0.3% acetic acid and methanol was used for final baseline chromatographic separation on a Hypersil BDS C18 column. Limits of detection (LOD=3sbl) in the range 5.2 to 181.2 �g L-1, resolution (R) better than 1.7, and repeatability of 2.7�5.1% (RSD for real samples) were achieved. The method was applied for quantification of individual phenolic compounds in barrique wines.
ACCESSION #
15124699

 

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