Dynamics of chloroacetanilide herbicides in various types of mesocosm wetlands

2017 ◽  
Vol 577 ◽  
pp. 386-394 ◽  
Author(s):  
Zhongbing Chen ◽  
Yi Chen ◽  
Jan Vymazal ◽  
Lumír Kule ◽  
Milan Koželuh
Keyword(s):  
Chloroacetanilide Herbicides

Discriminating Multiple Impacts of Biogas Residues Amendment in Selectively Decontaminating Chloroacetanilide Herbicides

2011 ◽  
Vol 59 (20) ◽  
pp. 11177-11185 ◽  
Author(s):  
Xiyun Cai ◽  
Lili Niu ◽  
Yu Zhang ◽  
Xianming Lang ◽  
Yunlong Yu ◽  
...  
Keyword(s):  
Multiple Impacts ◽  
Biogas Residues ◽  
Chloroacetanilide Herbicides

Dechlorination of the Chloroacetanilide Herbicides Alachlor and Metolachlor by Iron Metal

1998 ◽  
Vol 32 (10) ◽  
pp. 1482-1487 ◽  
Author(s):  
Gerald R. Eykholt ◽  
Douglas T. Davenport
Keyword(s):  
Iron Metal ◽  
Chloroacetanilide Herbicides

scholarly journals Analysis of the Chloroacetanilide Herbicides in Water Using SPME with CAR/PDMS and GC/ECD

2005 ◽  
Vol 88 (4) ◽  
pp. 1236-1241 ◽  
Author(s):  
Ying-Ming Hwang ◽  
Yih-Gang Wong ◽  
Wu-Hsiung Ho
Keyword(s):  
Humic Acid ◽  
Ph Value ◽  
Limit Of Detection ◽  
Solid Phase ◽  
Standard Addition ◽  
Electron Capture Detection ◽  
Detection Analysis ◽  
Salt Addition ◽  
Chloroacetanilide Herbicides ◽  
Relative Standard

Abstract The solid-phase microextraction (SPME) technique using a 75 mm film of carboxen/polydimethylsiloxane was applied to the analysis of chloroacetanilide herbicides (acetochlor, alachlor, butachlor, metolachlor, and propachlor) residues. The feasibility of SPME with gas chromatography electron capture detection analysis has been evaluated. The effects of experimental parameters such as magnetic stirring, salt addition, humic acid addition, pH value, and extraction time, as well as desorption temperature and time, were investigated. Analytical parameters such as linearity, repeatability and limit of detection were also evaluated. The inhibition of humic acid to the extraction of chloroacetanilide herbicides was observed. A standard addition method for calibration was recommended to reduce deviations caused by matrix interferences. The proposed method provided a simple and rapid analytical procedure for chloroacetanilide herbicides in water with limits of detection 0.002–0.065 μg/L for deionized water, and 0.005–0.22 μg/L for farm water. The relative standard deviations (n = 5) for analyses of farm water were 7–20% for 0.5 μg/L chloroacetanilide herbicides. This application was illustrated by the analysis of sample collected from farm water in the Chung-hwa area, Taiwan.

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