Analisis Residu Pestisida Golongan Piretroid (Lamda Sihalotrin) pada Sayuran Brokoli (Brassica oleracea var. italic) dengan Metode Kromatografi Gas

Abstract

An analysis of the residue levels of pyrethroid pesticides (lamda cyhalothrin) on broccoli (Brassica oleracea var. italic) has been carried out using a gas chromatography apparatus dan the extraction method. In the experimental sequence, the samples were cut into pieces and dissolved with acetone, dichloromethane and petroleum ether, mashed with ultra turax and allowed to stand until the filtrate and residue separate.The filtrate will be dried using a rotary evaporator and the result will be dissolved in isooctane and toluene in a ratio (90:10) and put into a test tube. Then determine the yield of the extract injected 1-2 μL in a gas chromatograph equipped with a specific detector for compounds containing elemental phosphorus (FPD) and (AFID). From the results of the analysis carried out, it was obtained that the pesticide residue levels in Broccoli in Langkat Regency contained 0.164 mg/kg while in Simalungun Regency broccoli there was 0.168 mg/kg and in Broccoli in Humbang Hasundutan No (not detected) the presence of pesticide residues of the pyrethroid group with the active ingredient Lamda Cyhalotrin.