肟草酮在环境样品中的高效液相色谱分析方法  

Analysis of Tralkoxydim in Environmental Samples by HPLC

作　　者：吴文铸[1] 郭敏[1] 何健[1] 孔德洋[1] 单正军[1] 

机构地区：[1]环境保护部南京环境科学研究所国家环境保护农药环境评价与污染控制重点实验室,南京210042

出　　处：《农药》2016年第11期811-813,共3页Agrochemicals

摘　　要：【目的】采用液相色谱法，建立肟草酮的仪器分析方法及在环境样品中的残留检测方法。【方法】使用XTerra RP18柱，以乙腈-水（体积比65：35，含万分之二的磷酸）为流动相，在UV 254．4nm下外标法定量分析。【结果】采用丙酮为提取剂，用磷酸调节pH值至3，乙酸乙酯萃取的方法，水、土壤和沉积物中平均回收率分别为96．0％-98．2％、85．3％～96．2％、89．1％～91.3％，相对标准偏差为1．0％-8．0％。【结论】该方法分析速度快、灵敏度高、重现性好，适用于肟草酮的环境样品中的快速检测。[Aims] A method for determination of tralkoxydim in environmental samples was developed. [Methods] With the mixture solution of acetonitrile and water（65：35, by vol, with 0.02% of phosphoric acid） as mobile phase, XTerra RP 18 column and PDA at 253.2 nm wavelength was described, and quantified by external standard method. [Results] The water, soil and sediment samples were extracted with acetone, adjusted pH to 3 with phosphoric acid, extracted by ethyl acetate. The recoveries in water, soils, and sediment were 96.0-98.2%, 85.3-96.2% and 89.1-91.3%, respectively. The RSD was less than 10%. [Conclusions] The method is rapid and simple with high sensitivity and good reproducibility, which is suitable for determination of tralkoxydim in environmental samples.

关 键 词：肟草酮 高效液相色谱 残留检测 环境样品 

分 类 号：X839.2[环境科学与工程—环境工程] O657.72[理学—分析化学]