| Title |
Preparation of Optimal Condition far Residual Pesticides Analysis by Solid-Phase Microextration in Water |
| Authors |
장미라 ( Mi Ra Jang ) ; 정효준 ( Hyo June Jeong ) ; 이홍근 ( Hong Keun Lee ) |
| 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℃ of desorption temperature, 45 minutes of equilibrium time, pH 6 and NaCl 0% addition using 100㎛ polydimethylsiloxane fiber and those of triazine and organophosphorus pesticides were obtained at 270℃ of desorption temperature, 60 minutes of equilibrium time, pH 6 and NaCl 0% addition using 100㎛ polydimethylsiloxane fiber. This method showed good lineality for organochlorine pesticides between 0.0001 and 10㎍/L with regression coefficients ranging 0.9986∼0.9992 and for triazine and organophosphorus pesticides between 0.01 and 100㎍/L with regression coefficients ranging 0.9867∼0.9998. |