Preparation of molecularly imprinted resin/polydopamine nanofibers mat for the highly efficient extraction and determination of sulfonamides in environmental water

With polyacrylonitrile nanofibers mat (PAN NFsM) as a template, molecularly imprinted resin/polydopamine nanofibers mat (MIR/PDA NFsM) was synthesized for the extraction of sulfonamides (SAs) in water. The specific surface area and pore volume were increased obviously due to the functionalization of...

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Bibliographic Details
Published in:Mikrochimica acta (1966) 2021-11, Vol.188 (11), p.405, Article 405
Main Authors: Jian, Ningge, Dai, Yuanyuan, Liu, Li-e, Wu, Di, Wu, Yongjun
Format: Article
Language:English
Subjects:
Acrylic Resins - chemistry
Adsorption
Analytical Chemistry
Antibiotics
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Chromatography, High Pressure Liquid
Comparative analysis
Hydrogen
Hydrogen bonds
Indoles - chemistry
Limit of Detection
Mass transfer
Microengineering
Molecularly Imprinted Polymers - chemistry
Nanochemistry
Nanofibers
Nanofibers - chemistry
Nanotechnology
Original Paper
Polyacrylonitrile
Polymers - chemistry
Resins
Solid Phase Extraction
Solid phases
Storage stability
Sulfonamides
Sulfonamides - analysis
Sulfonamides - chemistry
Sulfonamides - isolation & purification
Tandem Mass Spectrometry
Waste Water - analysis
Water
Water Pollutants, Chemical - analysis
Water Pollutants, Chemical - chemistry
Water Pollutants, Chemical - isolation & purification
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Summary:With polyacrylonitrile nanofibers mat (PAN NFsM) as a template, molecularly imprinted resin/polydopamine nanofibers mat (MIR/PDA NFsM) was synthesized for the extraction of sulfonamides (SAs) in water. The specific surface area and pore volume were increased obviously due to the functionalization of MIR. The adsorption efficiencies of MIR/PDA NFsM under optimized conditions for SAs were 92.3–99.3%. Possible adsorption mechanisms of imprinting recognition and hydrogen bond interactions were also put forward. Compared with MIR particles, the MIR/PDA NFsM exhibited much superior adsorption performance. Particularly, the outstanding mass transfer efficiency of MIR/PDA NFsM was much higher than the other reported adsorbents for SAs. Finally, a new method based on the solid-phase extraction (SPE) of MIR/PDA NFsM was successfully developed for the detection of five SAs in environmental water with HPLC–MS/MS and applied to the analysis of actual samples. Under the selected conditions, the enrichment factors of MIR/PDA NFsM of SCP, SMT, SMZ, SMR, and SMX were between 23.0 and 25.0. Low detection limits (0.26–0.76 ng L −1 ), broad linear range (1.0 ng L −1 to 10.0 μg L −1 ), and satisfactory recoveries (82.8–115.6%) and precisions (RSDs 
ISSN:0026-3672
1436-5073
DOI:10.1007/s00604-021-05069-5