气相色谱法同时测定饮用水中多种有机氯及拟除虫菊酯类农药残留量

气相色谱法同时测定水中多种有机氯及拟除虫菊酯类农药。对水质监测分析结果：有机氯农药的检测限0．001-0．003μg·mL^-1，拟除虫菊酯类农药检测限0．008～0．02μg·mL^-，线性相关系数0．9978～0．9999。用石油醚-正已烷（3＋1）提取，有机氯农药回收率94．2％-124．0％，相对标准偏差为3．27％。8．78％（n=5）；拟除虫菊酯类农药回收率95．2％-118．3％，相时标准偏差为5．70％～7．12％（n=5）；方法用于水样品中农药残留测定，结果满意。

Determination of Organochlorine and Pyrethroid Pesticides Residues in Water by Gas Chromatography

A method for the detemfination of organoehlorine and pyredaroid pesticides in water samples was developed, the result of monitoring the quailty of water. The detection limits of organochlorine pesticides were 0.001 ~ 0.003μg/mL, tile detection limits of pyretlu-oidpestieides were 0. 008 - 0.02μg /mL, the relational coefficient were between 0. 9978 ~ 0. 9999. Witheluent using petroletan ether ＋ hexane（3 ＋ 1） , The recoveries obtained for organocldorine pesticides ranged from 94.2.0 % to 124.0% and the recoveries of pyrethroid pesticide were 95.2% - 118.3% ,and with RSD of 3.27% - 8.78% and 5.70% - 7.12% respectively （ n = 5 ） . A satisfactory result was obtained for the determination of organocldorine and pyrethriod pesticides in water sample.