Automated sample cleanup for pesticide multiresidue analysis. Part II--Design and evaluation of column chromatography module.
An automated, continuous flow system is described for Florisil column chromatography of pesticide residues from food extracts. Evaluation of the system using 5 common organochlorine and organophosphorus pesticides in 2 crop matrices demonstrates essentially no difference in recovery or precision between automated and currently used manual analyses. The automated procedure uses only 20% of the solvents and adsorbents used in the manual procedure and is 3 times faster.
D001322:Autoanalysis / Q000295:instrumentation; D002852:Chromatography, Ion Exchange / Q000379:methods; D006843:Hydrocarbons, Chlorinated; D007306:Insecticides / Q000032:analysis; D010573:Pesticide Residues / Q000032:analysis*; D010936:Plant Extracts / Q000032:analysis*; D014675:Vegetables / Q000032:analysis
D006843:Hydrocarbons, Chlorinated; D007306:Insecticides; D010573:Pesticide Residues; D010936:Plant Extracts