WU Peng, MIAO Jian-jun, YU Xiang-xiang

 (Environmental Monitoring Center of Nantong, Nantong 226006, China)

Abstract: In this paper a small volume liquid–liquid extraction (SVLLE) method combined with gas chromatography coupled with dual-tower and dual-column for the rapid determination of organochlorine pesticide in surface water is developed. The method is simple and fast. Only 1.5 mL of extraction solvent is used. The enrichment factor can be 270~470. The recovery rate is in the range of 92.7%~102% with RSD in the range of 2.3%~6.5%, and the detection limit in the range of 0.2~0.04µg/L.

Key words: small volume liquid–liquid extraction; GC; organochlorine pesticide

E-mail: bbctnt2007@sohu.com

Analysis and Testing Technology and Instruments, Vol. 18, No. 2, 2012,124-128