GC/MS and GC/ECD Analysis of Residual Pesticides in Herbal drugs

GC/MS와 GC/ECD를 이용한 한약재 중 잔류 농약의 분석

  • Kim, Ho-Kyoung (Department of Research, Korea Institute of Oriental Medicine) ;
  • Park, So-Yeon (Department of Research, Korea Institute of Oriental Medicine) ;
  • Ko, Byoung-Seob (Department of Research, Korea Institute of Oriental Medicine)
  • Published : 1999.03.30

Abstract

Analysis of residual pesticides in herbal drugs was performed by GC-ECD and GC-MS. Especially, selected ion monitoring(SIM) technique was applied to increase the GC/MS sensitivity. Analysis of residual pesticides was determined sensitivity and selectively without any internal standard by setting the SIM technique to their characteristic fragments for quantitation ion and confirmation ion. The combination of two detector, GC-ECD and MS-SIM technique, is abailable for determining a multiclass residual pesticides in herbal drugs. The average recoveries through the method were $65.9%{\sim}99.7%$ in herbal drugs. The data of gas chromatographic analysis was compared with the limits of residual pesticides in herbal drugs and agricultural foods. 4. 4-DDT was detected above the limits to the residual pesticides in herbal drugs. Diazinon and EPN were detected, but the limits of residual pesticides were less than that of agricultural foods.

Keywords

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