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The degradation of chlorinated phenoxy acetic acids herbicides 2,4-D (2,4-dichlorophenoxyacetic acid) in aqueous solution using ultrasound-enhanced ozonation was studied in this paper. The effect of different parameters such as pH value and 2,4-D initial concentration in reaction solution on the kinetics of degradation of 2,4-D was investigated in an experimental reactor. It is found that the degradation...
The analysis of phenoxy acid herbicide 2,4-D(2,4-dichlorophenoxyacetic acid) and its ozonation intermediates using high performance liquid chromatography (HPLC) was studied in this paper. We discussed the effect of detective wave, mobile phase components and flow rate on the separation and detection of 2,4-D and its ozonation intermediates. Experimental results reveal several key parameters in the...
A novel photoresponsive functional monomer bearing a siloxane polymerisable group and azobenzene moieties was synthesized. This monomer was then used to prepare photoresponsive molecularly imprinted polymers (MIP), which have specific binding sites for 2,4-dichlorophenoxyacetic acid (2,4-D) through hydrogen bonding moieties. The binding affinity of the imprinted recognition sites was switchable by...
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