Analysis of pesticide residues in wine by solid-phase extraction and gas chromatography with electron capture and nitrogen-phosphorus detection.
A feasible and reproducible method for multiresidue analysis of several common pesticides, of different polarities, in wine samples is proposed. The method combines a solid-phase extraction on polymeric cartridges eluted with ethyl acetate and a gas chromatographic determination using electron capture and nitrogen-phosphorus detection. To avoid the matrix effect, previous washing of the cartridges with a mixture of water-2-propanol (90:10) and further clean-up of the extract on Florisil cartridges, together with a calibration using spiked extracts, are recommended.
Jiménez
J J
JJ
Department of Analytical Chemistry, Faculty of Sciences, University of Valladolid, Spain.
Bernal
J L
JL
del Nozal
M J
MJ
Toribio
L
L
Arias
E
E
D002849:Chromatography, Gas / Q000379:methods*; D009584:Nitrogen; D010573:Pesticide Residues / Q000032:analysis*; D010758:Phosphorus; D014920:Wine / Q000032:analysis*
D010573:Pesticide Residues; D010758:Phosphorus; D009584:Nitrogen