Imidazole ionic liquid functionalized ZIF-67 molecularly imprinted solid-phase extraction coupled with high performance liquid chromatography for analysis of bisphenol A

Abstract

An effective method based on the imidazole ionic liquid functionalized ZIF-67 molecularly imprinted solid-phase extractant (ZIF-67@[Bmim][Br]@MIP) coupled with high performance liquid chromatography (HPLC) for the separation/analysis of Bisphenol A (BPA)...

Graphene and MOF Assembly: Enhanced Fabrication and Functional Derivative via MOF Amorphization

“…[ 18,39 ] The introduction of an IL to the VG‐ZIF‐67 (denoted as VG‐IL‐ZIF‐67, Figure 4f) has resulted in the peak shift of the imidazole ring, indicating the interactions formed between the IL and the ZIF framework, which is consistent with previous reports. [ 18,40 ] After the amorphization process, the characteristic peaks of ZIF‐67 were largely preserved, as evidenced by the FTIR spectrum of the VG‐IL‐amZIF‐67 shown in Figure 4f. Meanwhile, the thermogravimetric analysis (Figure S19, Supporting Information) was used to characterise the VG‐IL‐ZIF‐67 sample during thermal treatment at the argon atmosphere, showing no distinctive mass change at below amorphization temperature.…”

A dual-mode “signal-on” split-type aptasensor for bisphenol A via target-induced hybridization chain reaction amplification

“…To date, many methods have been developed for the quantitative analysis of BPA with a single response signal, such as high performance liquid chromatography (HPLC), [7][8][9] liquid chromatography (LC), 10 gas chromatography-mass spectrometry (GC-MS), 11 liquid chromatography-mass spectrometry (LC-MS), 12 enzyme-linked immunosorbent assay (ELISA) 13 and so on. Although the above methods are sensitive for BPA detection, their uses are limited by the need for expensive equipment, skilled operators, and complex and time-consuming sample pre-concentration procedures.…”

A highly selective molecularly imprinted electrochemical sensor with anti-interference based on GO/ZIF-67/AgNPs for the detection of p-cresol in a water environment

“…15,16 Zeolite imidazolate framework-67 (ZIF-67) with large specic surface area, suitable porosity, good stability and biocompatibility has received much attention from researchers in recent years. [17][18][19] ZIF-67 with specially regular morphology could be an excellent substrate for MIP preparation. For example, Zhang et al prepared a molecularly imprinted electrochemical sensor (MIECS) by modifying a glassy carbon electrode (GCE) with ZIF-67, for the detection of dopamine, which improved the adsorption capacity of MIP to dopamine.…”