MIPdatabase
Authors: Xie W, Zhang J, Zeng YB, Wang HL, Yang YW, Zhai YY, Miao DW, Li L
Article Title: Highly sensitive and selective detection of 4-nitroaniline in water by a novel fluorescent sensor based on molecularly imprinted poly(ionic liquid).
Publication date: 2020
Journal: Analytical and Bioanalytical Chemistry
Volume: 412
Issue: (23)
Page numbers: 5653-5661.
DOI: 10.1007/s00216-020-02785-4
Abstract: A novel molecularly imprinted fluorescent sensor for the determination of 4-nitroaniline (4-NA) was synthesized via free radical polymerization with 3-[(7-methoxy-2-oxo-2H-chromen-4-yl)methyl]-1-vinyl-1H-imidazol-3-ium bromide as the fluorescence functional monomer, 4-NA as the template molecule, ethylene glycol dimethacrylate as the cross-linker, and 2,2'-azo(bisisobutyronitrile) as the initiator. The obtained fluorescent poly(ionic liquid) was characterized through Fourier transform infrared, scanning electron microscopy, Brunauer-Emmett-Teller analysis, and fluorescence spectrophotometry. The fluorescent sensor had high fluorescence intensity, short detection time (0.5 min), good selectivity, and excellent sensitivity (limit of detection = 0.8 nM) for 4-NA, with good linear relationships of 2.67-10,000 nM. The practical applicability of the fluorescence sensor in detecting 4-NA in industrial wastewater and spiked environmental water was demonstrated, and a satisfactory result was obtained
Template and target information: 4-nitroaniline, 4-NA
Author keywords: fluorescent sensor, molecular imprinting, Poly(ionic liquid), 4-Nitroaniline
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