土壤和水中氰氟草酯及其代谢物的分析方法(英文)  

Analytical Methods for Cyhalofop-butyl and Its Metabolites in Soil and Water

作　　者：Jilisa K.Mwalilino 赵莉[2] 朱国念[2] 陈英旭[1] 

机构地区：[1]浙江大学环境科学系,杭州310029 [2]浙江大学植物保护系,杭州310029

出　　处：《农药学学报》2001年第4期74-80,共7页Chinese Journal of Pesticide Science

摘　　要：建立了一种简易而实用的残留分析方法 ,用于检测土壤与水中氰氟草酯及其 3种代谢产物 ,即 (R) -2 - [4 - (4-氰基 - 2 -氟苯氧基 )苯氧基 ]-丙酸 (ACID)、 (R) - 2 - [4 - (4-氨基甲酰基 - 2 -氟苯氧基 )苯氧基 ]-丙酸(AMIDE)、(R) - 2 - [4 - (4-羧基 - 2 -氟苯氧基 )苯氧基 ]-丙酸 (DIACID)。该方法仅用高效液相色谱法的梯度洗脱程序即可将 4种化合物有效分离 ,省去了需将氰氟草酯 (母体 )衍生化反应再用气相色谱法检测这一复杂步骤。同时 ,该方法的添加回收率高。较低的 p H值对提高A relatively simple and less expensive method is proposed for the determination of cyhalofop butyl (XDE 537) and its metabolites: R (+) 2 [4 (2 fluoro 4 cyanophenoxy) phenoxy] propanoic acid (ACID); R (+) 2 (4 carboxyl 2 fluoro 4 cyanophenoxy) phenoxy] propanoic acid (DIACID); and 2 propanoic acid (DIACID); and 2 [4 (4 carbamoyl 2[JP] fluorophenoxy) phenoxy] propanoic acid (AMIDE). Conversion of the parent compound to its aryl/alkyl/or halide derivative for determination by GC was found unnecessary. Only HPLC was used and under gradient elution all the four compounds separated well. Good recoveries were obtained with the fortified soil and water samples. Low pH was important for the extraction of the four components. propanoic acid (AMIDE). Conversion of the parent compound to its aryl/alkyl/or halide derivative for determination by GC was found unnecessary. Only HPLC was used and under gradient elution all the four compounds separated well. Good recoveries were obtained with the fortified soil and water samples. Low pH was important for the extraction of the four components.

关 键 词：氰氟草酯 代谢物 土壤 水 农药残留分析 

分 类 号：TQ450.263[化学工程—农药化工]