Multi-Pesticide Residue Method for Analysis of Organochlorine and Organophosphorus Pesticide

  • Bonghun Lee (Pusan National Univ.) ;
  • Woo (Pusan National Univ., Pusan Local Food and Drug Administration, Pusan Junior College, Inje Univ.)
  • Published : 1997.10.01

Abstract

Pesticide residues were extracted with 70% acetone and transferred to dichloromethane. Extracts were applied to open-column chromatography with florisil and alumina-N, The final extract was analyzed by gas chromatography with electron-capture detector(GC/ECD) and nitrogen-phosphorus detector(GC/NPD). Recoveries of the 17 organochlorine pesticides were ranged from 60.8 to 84.9% and those of 15 organophosphorus pesticides, from 70.5 to 100.0%(except phosmet and azinphos-methyl). The minimum detectable levels of this analytical method were low (0.021-0.058 mg/kg).

Keywords