Preparation of Optimal Condition for Residual Pesticides Analysis by Solid-Phase Microextraction in Water

물중의 잔류농약 분석을 위한 SPME의 최적조건 선정에 관한 연구

  • Jang, Mi Ra (Seoul Metropolitan Government Research Institute of Public Health and Environment) ;
  • Jeong, Hyo June (Dept. of Environmental Health Science, Graduate School of Public Health, Seoul National University) ;
  • Lee, Hong Keun (Dept. of Environmental Health Science, Graduate School of Public Health, Seoul National University)
  • 장미라 (서울시 보건환경연구원) ;
  • 정효준 (서울대학교 환경보건학과) ;
  • 이홍근 (서울대학교 환경보건학과)
  • Published : 2002.12.31

Abstract

This study was conducted to develope a simple, rapid and solvent-free solid-phase microextraction(SPME) procedure for extracting three organochlorine, one triazine and nine organophosphorus pesticides from water. The optimal conditions of SPME for analyses of organochlorine pesticides were obtained at $250^{\circ}C$ of desorption temperature, 45 minutes of equilibrium time, pH 6 and NaCl 0% addition using $100{\mu}m$ polydimethylsiloxane fiber and those of triazine and organophosphorus pesticides were obtained at $270^{\circ}C$ of desorption temperature, 60 minutes of equilibrium time, pH 6 and NaCl 0% addition using $100{\mu}m$ polydimethylsiloxane fiber. This method showed good lineality for organochlorine pesticides between 0.0001 and $10{\mu}g/L$ with regression coefficients ranging 0.9986~0.9992 and for triazine and organophosphorus pesticides between 0.01 and $10{\mu}g/L$ with regression coefficients ranging 0.9867~0.9998.

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