摘要
气相色谱法同时测定土壤中多种有机氯及拟除虫菊酯类农药。对土壤的分析结果:有机氯农药的检出限0.001~0、003μg/mL,拟除虫菊酯类农药检出限0.008~0.02μg/mL,线性相关系数0.9978~0.9999。用y(石油醚):V(丙酮)=3:1超声波提取,有机氯农药回收率94.2%~124.0%,相对标准偏差为3.3%~8.8%(n=5);拟除虫菊酯类农药回收率95.2%~118.3%,相对标准偏差为5.7%~7.1%(n=5);方法适用于土壤样品中农药残留测定。
A method for the determination of organochlorine and pyrethroid pesticides in soil samples was developed. The results of monitoring the quaihy of soil were as follows: The detection limits of organochlorine pesticides were 0. 001 -0.003 μg/mL, the detection limits of pyrethroid pesticides were 0.008 -0.02μg/mL, correlation coefficients were 0.9978 - 0. 9999. Using petroleum ether + acetone (3 : 1 ) as on eluent, the recoveries obtained for organochlo- rine pesticides ranged from 94.2.0 % to 124.0 % and the recoveries of pyrethroid pesticide were 95.2 % - 118.3 %, and with RSD of 3.3 % - 8.8 % and 5.7 % - 7.1% respectively ( n = 5). Satisfactory results were obtained for the determination of organochlorine and pyrethriod pesticides in soil samples.
出处
《分析试验室》
CAS
CSCD
北大核心
2006年第9期60-63,共4页
Chinese Journal of Analysis Laboratory