2,4-Dichlorophenoxyacetic acid-imprinted preparation

Surugiu et al. [67] have introduced an Enzyme Immuno-Like Assays (EzILA) for the herbicide 2,4-dichlorophenoxyacetic acid (2,4-D). The label was a 2,4-D conjugate with the tobacco peroxidase (TOP) enzyme, which allows for both colorimetric and chemiluminescent detection. In this case, the polymer imprinted with 2,4-D was synthesized in the form of microspheres. In contrast, despite its higher binding capacity for radiolabeled 2,4-D, a conventional MIP prepared by bulk polymerization showed only weak binding of the 2,4-D-TOP tracer. 

A herbicide, 2,4-dichlorophenoxyacetic acid (2,4-D)-imprinted polymer particles were immobilized on a disposable three-electrode system prepared by screen printing [13]. The imprinted polymer particles were... 

Moreover, a magnetic molecularly imprinted polymer of 4-divinylpyridine and EGDMA particles was synthesized by inverse suspension polymerization [119]. The reaction was carried out in silicon oil as a dispersion phase, and in the presence of 2,4-dichlorophenoxyacetic acid and MPTS. The advantages of the silicon oil as a continuous phase are a low polarity and immiscibility with the monomer mixture. The prepared particle average size is 20 pm and the magnetic content is very low, at around 1 wt%. 

Yongliang Liu, He Yonghuan, Jin Yulong, Huang Yanyan, Liu Guoquan, and Zhao Rui. Preparation of monodispersed macroporous core-shell molecularly imprinted particles and their application in the determination of 2,4-dichlorophenoxyacetic acid. J. Chromatogr. A. 1323 (2014) 11-17. 

---