Dual-template molecularly imprinted polymers for dispersive solid-phase extraction of fluoroquinolones in water samples coupled with high performance liquid chromatography

Abstract

Dual-template molecularly imprinted polymers were synthesized using norfloxacin and enrofloxacin as templates by precipitation polymerization with a multi-template imprinting strategy.

Molecularly imprinted polymer coating on metal‐organic frameworks for solid‐phase extraction of fluoroquinolones from water

“…As shown in Figure 4A, the adsorption capacity of MIP@UiO-66-NH 2 and NIP@UiO-66-NH 2 increased with increasing ENRO concentration, and the maximum adsorption capacity was 99.19 and 33.60 mg/g for MIP@UiO-66-NH 2 and NIP@UiO-66-NH 2 , respectively. The adsorption capacity was much higher than that reported in the literature [27][28][29][30][31][32][33][34][35][36]. Moreover, the adsorption capacity did not change with increasing ENRO concentration.…”

“…The adsorption rate is an essential property of MIP@UiO‐66‐NH 2 for fast separation in practical applications. As shown in Figure B, the adsorption rate for ENRO was very fast, and the adsorption equilibrium was reached at 65 s, which is much faster than traditional MIPs and other core materials . As in the static adsorption experiment, the adsorption capacity of MIP@UiO‐66‐NH 2 was higher than that of NIP@UiO‐66‐NH 2 , indicating that MIP@UiO‐66‐NH 2 had adsorption properties specific to ENRO.…”

Sample Preparation Using Molecularly Imprinted Polymers

“…40 Boronic acid was also used for its ability to form a reversible covalent complex with cis-diol compounds such as luteolin, 48,49 vitamin B12, 50 sialic acid, 51 or for the specific trapping of glycans of glycoproteins as discussed in more detail below. Many works reported the screening of different synthesis conditions by preparing MIPs using different types of monomers, cross-linkers, template/monomer or monomer/cross-linker ratios, natures of the porogen, 28,30,39,43,[52][53][54][55][56][57][58][59][60][61][62][63][64][65] and even the pH when boronic acid is involved. 50,66 The evaluation of the resulting MIPs consists mainly in comparing the binding capacity of the MIP for the target analyte with the one obtained with the corresponding non-imprinted polymer (NIP) synthesized with the same conditions as the MIP but in the absence of the template molecule.…”

Synthesis of molecularly imprinted polymer adsorbents for solid‐phase extraction of strobilurin fungicides from agricultural products

“…Molecularly imprinted polymers (MIPs) are often referred to as “artificial antibodies” possessing high affinity and selectivity toward targets. MIPs are obtained by a copolymerization process in porogen solvent with template molecule, functional monomer, and cross‐linking agent [16–18]. Due to well‐known unique advantages of good stability, high selectivity, low cost, and ease in preparation [19–21], MIPs have been widely used in SPE process for different trace pesticide residues such as organophosphorus pesticides [22–24], imidazole fungicides [25], organochlorine fungicides [26], iprodione fungicides [27], triazole pesticides [28], phenoxyacetic acid fungicides [29], benzimidazole fungicide [30], and pyrethroids insecticides [31,32].…”