title: Residues of cypermethrin in field-treated grapes and raisins produced after various treatments.
abstract: Residues of the synthetic pyrethroid insecticide cypermethrin in fresh grapes of cv. Thomson Seedless and in raisins were studied. The commercial formulation Cymbush10% EC was applied according to the label onto the typical seedless variety and on a seed-producing clone. Samples were collected at time zero and at 15 or 21 days post-application. The raisins were produced either by submersion for 3 min in an aqueous solution of 3% potassium carbonate and 1% ethyl oleate, and dried for 15 days under direct sunlight or were dried without chemical processing. A gas chromatographic method was used for the analysis of residues. The residues in the grapes at the recommended preharvest interval (15 days) ranged from 0.23 to 0.41 mg kg(-1), whereas those in raisins ranged from 0.25 to 0.46 mg kg(-1).
authors.affiliation: National Agricultural Research Foundation (N.AG.RE.F.) 1, S. Venizelou Str., GR-141 23 Lykovrissi, Athens, Greece. rizos@internet.gr
authors.forename: Ch
authors.initials: Ch
authors.lastname: Lentza-Rizos
authors.forename: K
authors.initials: K
authors.lastname: Kokkinaki
mesh_terms: D005504:Food Analysis / Q000379:methods; D005506:Food Contamination / Q000032:analysis*; D005511:Food Handling / Q000379:methods; D007306:Insecticides / Q000032:analysis*; D010573:Pesticide Residues / Q000032:analysis*; D011722:Pyrethrins / Q000032:analysis*; D027843:Vitis / Q000737:chemistry* / Q000254:growth & development
chemical_list: D007306:Insecticides; D010573:Pesticide Residues; D011722:Pyrethrins; C017160:cypermethrin