Preparation, evaluation and application of diazinon imprinted polymers as the sorbent in molecularly imprinted solid-phase extraction and liquid chromatography analysis in cucumber and aqueous samples

Synthesis and application of molecularly imprinted polymers for the selective extraction of organophosphorus pesticides from vegetable oils

“…The development of MIPs for the extraction of OPs has been largely reported these last years. MIPs were prepared as particles to be used in cartridges between two frits as SPE sorbent [11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26] or as dispersive sorbent for dSPE [27][28][29][30][31] and for matrix solid-phase dispersion (MSPD) [32][33][34] or as a thin film in solid-phase microextraction (SPME) [35][36][37] or in stir bar sorption extraction (SBSE) [38]. They were applied to the selective extraction of OPs from vegetable extracts (cucumber, lettuce, apple, pear…) and environmental samples such as waters and soil extracts.…”

“…The effect of the template was studied only once for the development of an MIP for dimethoate and its metabolite omethoate showing that the metabolite was better adapted for the trapping of both molecules [19]. A few studies described the synthesis of an MIP by varying the nature of the monomer [11,19,28,30,31] and/or the porogen [11,25,30,31] or the template/monomer ratio [24]. In some studies, the choice of the monomer for a given template resulted from studies by molecular modeling and computational design [17,19,23].…”

“…This comparison between MIP and NIP achieved in spiked pure media allows to put in evidence the presence of cavities in the MIP and is also useful to optimize the extraction procedure that must give rise to high extraction recovery on the MIP and low one on the NIP [8]. Except for one reported work [21], the conditions of extraction finalized in pure media were applied to real samples [11,[17][18][19][20][22][23][24][25][26][27]38] without a control of the selectivity by using the NIP or without reoptimization of the extraction conditions to circumvent matrix effects as already reported [8]. These matrix effects were well illustrated by Sanagi et al who reported recoveries obtained in pure media and in real samples after applying the same extraction procedure on MIP and on NIP [21].…”

Synthesis and characterisation of a selective adsorbent based on the molecularly imprinted polymer for the removal of cloxacillin antibiotic residue from milk

“…Molecularly imprinted polymer (MIP) is a polymeric material that contains selective identification sites versus template molecules. This feature has attracted researchers over the past decade (Davoodi et al, ). During an imprinting process, template molecules are placed in a 3D polymer network based on their shape, size and orientation functional groups (Shojaei et al, ).…”

Determination of Some Flavonoids by HPLC Using Quercetin-Molecularly Imprinted Polymers

“…After the polymerization process, the template molecule is extracted from the MIP and the resulting three-dimensional cavities are able to recognize one target analyte or group of structurally similar analytes on which it was prepared. [2,3] The schematic representation of the molecular imprinting process with quercetin molecule as the template is shown in Figure 1.…”