Journal of Food Hygiene and Safety (한국식품위생안전성학회지)

The Korean Society of Food Hygiene and Safety (한국식품위생안전성학회)
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Determination of Urinary Metabolite of Profenofos after Oral Administration and Dermal Application to Rats

흰쥐를 이용한 profenofos의 경구투여 및 피부도포 후 뇨 중 대사물질 측정

  • 민경진 (계명대학교 공중보건학과) ;
  • 조영주 (농업과학기술원 환경생태과) ;
  • 이인선 (계명대학교 TMR센터) ;
  • 차춘근 (계명대학교 공중보건학과)
  • Published : 2002.03.01
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Abstract

This study was aimed to determine the urinary metabolite of profenofos, one of the organophos-phorus pesticides, as the biomarkers of exposure. Urine samples were collected fort 24 hours in metabolic cages after oral administration and dermal application of profenofos to rats. Identification of the derivatized urinary metabolite was determined by GC/MS and excretion time courses of the urinary metabolite was analyzed by GC/MS. Urinary metabolite of profenofos, 4-bromo-2-chlorophenol, was detected in rats urine both after oral administration and dermal application of profenofos. Parent compound was not detected in the experiment. In GC/MS, the mass spectral confirmation for 4-bromo-2-chlorophenol ion was identified at m/z 208.4-bromo-2-chlorophenol was excreted within 48 hours and 72 hours after oral administration and dermal application of profenofos, respectively. In this study, the same urinary metabolite of profenofos was detected both in oral and dermal exposure. Generally, excretion of the urinary metabolite after oral administration was detected faster than after dermal application. It is suggested that urinary 4-bromo-2-chlorophenol could be used as the biomarkers of exposure to profenofos.

흰쥐를 이용하여 profenofos의 경구투여 및 피부도포 후 뇨 중 대사물질과 뇨 중 대사물질의 시간별 배설량을 GC/MS로 측정한 결과는 다음과 같다. Profenofos를 경구투여 후 뇨 중 대사물질은 4-bromo-2-chloropheno이며, GC/MS로 분석한 결과 4-bromo-2-chlorophenol는 m/z=208에서 분자이온을 추정하였다. Profenofos를 피부도포 후 뇨 중 대사물질은 경구투여와 동일한 대사물질인 4-bromo-2-chloropheno이었다. 모 화합물이나 4-bromo-2-chlorophenol외 다른 대사물질은 검출되지 않았다. Profenofos를 경구투여 후 뇨 중 대사물질인 4-bromo-2-chlorophenol의 시간별 배설량은 12시간에 가장 많은 양이 배설되었다. 또한 48시간 내 95%가 배설되었고 72시간 이후는 대사물질이 배설되지 않았다. 한편 profenofos를 피부도포 후 뇨 중 대사물질인 4-bromo-2-chlorophenol의 시간별 배설량은 12시간에 가장 많은 양이 배설되었으며, 48시간 내 87%가 배설되었고 96시간 이후는 대사물질이 배설되지 않았다. Profenofos 의 뇨 중 대사물질인 4-bromo-2-chlorophenol는 profenofos의 생체모니터링 지표물질로서 사용될 수 있을 것이라고 생각되며, 뇨 중 4-bromo-2-chlorophenol의 시간별 배설량을 측정한 결과 경구투여보다 피부도포 후 배설이 지연된 다는 것을 알 수 있었다.

Keywords

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