Background:
2,4,6-Trichlorophenol (2,4,6-TCP) is one of the most significant pollutants among chlorophenols due to its harmful effects. It has been classified as priority pollutants by
the U.S. Environmental Protection Agency. Therefore, highly selective separation and
sensitive recognition of 2,4,6-TCP from complex samples are in great demand.
Methods:
For this purpose , the preparation of MIPs selective for 2,4,6-TCP was carried out by
precipitation polymerization. A non-covalent approach was employed to establish
an interaction between template and monomer (methacrylic acid).
Results:
The resulted polymers were characterized by scanning electron microscopy (SEM), EDX, Fourier-transform infrared spectroscopy(FT-IR) and BET. The batch binding assay was carried out to select the most selective polymer in terms of binding efficiency towards the target template. The adsorption parameters such as initial concentration, dosage of polymer, pH effect and selectivity with structural analogues were determined . The selectivity of MIP towards the 2, 4, 6-TCP was higher as compared to its structural analogue melamine with a good adsorption efficiency. Furthermore, the MIP as an extracting material was applied for extraction of 2, 4, 6-trichlorophenol from the spiked blood serum (88%) and river water sample (94%). The results showed that the optimized MIP could successfully extract 2,4,6-TCP from the blood serum and river water.
Conclusion:
The molecularly imprinted polymers for 2,4,6-TCP have been prepared by precipitation
polymerization with a non-covalent approach. The optimized MIP has been successfully
used for the extraction of 2,4,6-TCP from blood serum and river water.
Magnetic Porous Molecularly Imprinted Polymers Based on Surface Precipitation Polymerization and Mesoporous SiO2 Layer as Sacrificial Support for Efficient and Selective Extraction and Determination of Chlorogenic Acid in Duzhong Brick Tea
