Dispersive liquid-liquid microextraction for the determination of herbicides of urea derivatives family in natural waters by HPLC

被引：13

作者：

Amelin, V. G. ^{[1
,2
]}

Lavrukhin, D. K. ^{[1
,2
]}

Tret'yakov, A. V. ^{[2
]}

机构：

[1] Vladimir State Univ, Vladimir 600000, Russia

[2] Fed Ctr Anim Hlth FGI ARRIAH, Vladimir 600901, Russia

来源：

JOURNAL OF ANALYTICAL CHEMISTRY | 2013年 / 68卷 / 09期

关键词：

HPLC; herbicides of urea derivatives family; natural waters; ultrasonic dispersive liquid-liquid microextraction; SOLID-PHASE MICROEXTRACTION; PHENYLUREA HERBICIDES; CHROMATOGRAPHY; PESTICIDES; DERIVATIZATION; EXTRACTION;

D O I：

10.1134/S1061934813070022

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A method is proposed for determining 11 herbicides of the urea family at a level of 0.3-20 mu g/L using HPLC with diode array detection at 240 nm. Herbicides are extracted from water samples by liquid-liquid microextraction with dichloromethane using ultrasonic dispersion. The recovery of pesticides is 53-98%; the coefficients of preconcentration 78-160. An analysis takes about 1 h; the relative standard deviation of results does not exceed 6%.

引用

页码：822 / 830

页数：9

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