Determination triazine pesticides in cereal samples based on single-hole hollow molecularly imprinted microspheres

An integrated carbon entrapped molecularly imprinted polymer (MIP) electrode for voltammetric detection of resveratrol in wine

“…Even in cases where thin layer imprinted polymers have been employed, a multistep fabrication is needed, where the initiators must be graed on the surface of the microspheres being encapsulated. [22][23][24][25][26][27][28][29][30] The 2 electrode design reproducibility and recoveries were evaluated by analysis of wine spiked with 5 mg L À1 of resveratrol as described earlier. Four different electrodes prepared under the same conditions were used to analyze the standard.…”

“…[16][17][18][19][20][21] On the other hand, MIPs can be fashioned and supported by a platform, such as silica, magnetic and polystyrene microspheres, and tubular formats or on glassy carbon electrodes, where a '2D' MIP lm is formed, an approach referred to as surface imprinting. [22][23][24][25][26][27][28][29][30] The MIP lm affords improved analyte binding kinetics and ensures that the cavities are easily accessible. There are numerous methods described in the literature for surface imprinting such as electropolymerization, [22][23][24] atom transfer radical polymerization (ATRP) 25,26 reversible addition-fragmentation chain transfer (RAFT) polymerization, 27 and a self-assembly homopolymerization method.…”

“…There are numerous methods described in the literature for surface imprinting such as electropolymerization, [22][23][24] atom transfer radical polymerization (ATRP) 25,26 reversible addition-fragmentation chain transfer (RAFT) polymerization, 27 and a self-assembly homopolymerization method. [28][29][30][31] Both RAFT and ATRP methods are in general time consuming and involve a multi-reaction process that requires graing initiators on the surface of the support, to localize the site for polymerization. In addition, the graing of the initiators in some cases is never homogeneous, hence resulting in an uneven polymer lm coating.…”

One‐step synthesized magnetic MIL‐101(Cr) for effective extraction of triazine herbicides from rice prior to determination by liquid chromatography‐tandem mass spectrometry

“…The present method was further compared with other methods (which were applied to analyze cereal samples) reported in the literatures [4,6,29,[33][34][35]. The detailed comparison was summarized in Table 1.…”

Determination of roxithromycin from human plasma samples based on magnetic surface molecularly imprinted polymers followed by liquid chromatography-tandem mass spectromer.

“…The two distinct linear portions in Scatchard analysis indicated two classes of binding sites existed in the MMIPs: one is high selectivity or affinity with high binding energy and the other is low affinity with low binding energy [41]. We calculated the data as most literatures did [42,43,44,45,46] Figure 5c, which was just a straight line. It revealed that the MNIPs had homogeneous binding sites and K d and Q max were 1073.9 µmol L −1 and 57.7 µmol g −1 , respectively and the adsorption of NMIPs is nonspecific.…”