影响联苯菊酯在土壤中降解的因素研究  

Influence Factors of Degradation of Bifenthrin in Soil

作　　者：唐明明[1] 康頔[1] 陈娇娇[1] 胡德禹[1] 金林红[1] 

机构地区：[1]贵州大学,贵州贵阳550025

出　　处：《辽宁化工》2016年第6期696-698,701,共4页Liaoning Chemical Industry

摘　　要：联苯菊酯是一种新型的拟除虫菊酯类杀虫剂,为了探索联苯菊酯在土壤中的降解因素,本文通过室内试验同时建立了联苯菊酯在土壤中的气相色谱（GC-ECD）检测方法。探讨了土壤中的含水率、微生物以及p H对联苯菊酯降解的影响。联苯菊酯在土壤中的回收率为85.60%~98.89%,相对标准偏差（RSD）为2.29%~3.12%。结果表明：土壤中含水率越高,微生物越多。p H越高,联苯菊酯在土壤中的降解越快。联苯菊酯在土壤中的降解主要受p H和微生物数量影响。Bifenthrin is a new type ofpyrethroid insecticide. In order to explore the factors of degradation of bifenthrin in soil, a method of determining bifenthrin in soil was developed by gas chromatography with electron capture detector （GC-ECD）. Effect of soil moisture, soil microorganism and pH on degradation of bifenthrin was also studied. The recovery of bifenthrin in the soil was 85.60%-98.89%, the relative standard deviation （RSD） was 2.29%-3.12% .The results show that, the higher the moisture content in soil, the higher the microorganism content; the higher the PH, the faster the degradation speed ofbifenthrin in the soil. The degradation speed of bifenthrin in soil is mainly influenced by microorganism content and PH.

关 键 词：联苯菊酯 土壤 降解 气相色谱 

分 类 号：TQ450[化学工程—农药化工]