Determination of pesticides in red wines with on-line coupled microporous membrane liquid-liquid extraction-gas chromatography.
Microporous membrane liquid-liquid extraction (MMLLE) was coupled on-line with gas chromatography for the determination of pesticides in wine. The MMLLE-GC provided to be efficient and selective and the method was linear, repeatable and sensitive. The limits of detection ranged from 0.05 to 2.3 microg/l and the limits of quantification were 0.2-7.5 microg/l for all the analytes using FID as detector. With MS detection LODs in the range 0.03-0.4 and LOQs of 0.3-3.5 microg/l were achieved. The method was applied to the determination of pesticides in several red wines of different origin.
Hyötyläinen
T
T
Laboratory of Analytical Chemistry, Department of Chemistry, University of Helsinki, P.O. Box 55, FIN-00014 Helsinki, Finland. tuulia.hyotylainen@helsinki.fi
Lüthje
K
K
Rautiainen-Rämä
M
M
Riekkola
M L
ML
D002849:Chromatography, Gas / Q000379:methods*; D010575:Pesticides / Q000032:analysis*; D014920:Wine / Q000032:analysis*
D010575:Pesticides