[A环-U-^(14)C]-丙酯草醚在土壤中的吸附和解吸特性  

Absorption and Desorption of [A Ring-U-^(14)C]-Pyribambenz-propyl in Soil

作　　者：丁炜[1] 

机构地区：[1]浙江科技学院,杭州310023

出　　处：《农药》2008年第3期208-210,共3页Agrochemicals

基　　金：国家自然科学基金重点项目(20632070);中科院知识创新工程重要方向项目(KGCX3-SYW-203-03);高等学校博士学科点专项科研基金项目(20060335101)

摘　　要：实验室模拟条件下,采用液体闪烁测量技术研究了[A环-U-14C]-丙酯草醚在7种土壤中的吸附与解吸附性能,并对吸附常数Kf与土壤理化性质的相关性进行了分析。结果表明,[A环-U-14C]-丙酯草醚易被土壤吸附,解吸率极低,在土壤中的吸附符合Freundlich方程,吸附常数Kf与土壤有机质呈显著正相关,与土壤pH值有一定相关性。Absorption and desorption of [A Ring-U-^14C]-pyribambenz-propyl in 7 soils were studied by liquid scintillation counting. The relativity of absorption constant and quality of soil were analyzed. The results showed that [A Ring-U-^14C]-pyribambenz-propyl was easily absorbed in soils. Adsorptions of [A Ring-U-^14C]-pyribambenz-propyl in soils followed freundlich equation. The adsorption constant Kfwas positively related to soil organic matter（OM）.

关 键 词：[A环-U-^14C]-丙酯草醚 土壤 吸附 解吸附 

分 类 号：TQ450.26[化学工程—农药化工]