Detection of deltamethrin and iprodion in tomatoes, cucumbers and melons.

French. L' emploi des doses excessives sur tomate, concombre, melon sous-serres et determination quantitative des residus apres certain intervalle 12, 24, 48, 72 heures et apres une semaine en utilisant l' appareil GLC/ECD, a ete le sujet d' une etude experimentale conduite en laboratoire IRAL de Fanar en 1995 pour determiner les residus des deux pesticides : Deltamithrine e Iprodion. Desquamation a enlevetotalement 100 les residus de Deltamithrine dans les 3 cultures. Selon les normes exiges par le Codex Alimentarius FAO/OMS (1986), Iprodion montre des quantites minimes des residus dans tous les echantillons. 75-97 a ete le pourcentage de degradation de Deltamithrine realise apres 72 heures e 97-98 apres 48 heures pour l' Iprodion dans tomates, concombres and melons.

English. The use of overdose applied on tomato, cucumber and melon in green houses and determination of residues after several intervals 12, 24, 48, 72 hours and one week after using a GLC apparatus equipped with Electron Capture Detector (ECD); Was the subject of the present experiment which was carried out at the Lebanese Agricultural Research Institute (IRAL) of Fanar in 1995 to detect 2 pesticides Deltamethrin and Iprodion. Results showed that peeling totally (100) removed residues of Deltamethrin from all tested samples for the three crops, whereas, the residual level of Iprodion was very low compared to those cited by the alimentarius codex FAO/WHO (1986). Also, the analytical data showed that the degradation percentage of Deltamethrin ranged from 75 to 97 in the three crops within 72 hours, whereas, Iprodion ranged from 97 to 99 in the three crops within 48 hours.