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Synthesis and characterization of MIL-101(Cr) intercalated by polyaniline composite, doped with silica nanoparticles and its evaluation as an efficient solid-phase extraction sorbent
journal contribution
posted on 2023-05-20, 00:18 authored by Alireza GhiasvandAlireza Ghiasvand, Ghaedrahmati, L, Heidari, N, Paul HaddadPaul Haddad, Farhadi, SA metal–organic framework/polyaniline composite was synthesized and doped with silica nanoparticles. The structure and morphology of the composite were characterized using Fourier transform infrared spectroscopy and scanning electron microscopy. It was packed inside a cartridge and evaluated for the solid‐phase extraction of thymol and carvacrol, followed by gas chromatography with flame ionization detection measurement. The influence of the important experimental variables on the efficiency of the proposed method, including pH, ionic strength, volume of sample solution and type, and volume of eluent were studied and optimized. Under the optimal conditions, the relative standard deviations were found to be 3.8 and 9.8% for thymol and carvacrol, respectively, and the corresponding limits of detection were 0.1 and 1.0 ng/mL. The linear dynamic ranges for the calibration curves of the analytes were 10–10000 ng/mL, with determination coefficients (R2) > 0.993. The limits of quantifications were found to be 0.01 and 0.5 μg/mL, for thymol and carvacrol, respectively. The prepared nanocomposite sorbent was applied successfully to the extraction and determination of thymol and carvacrol in Lamiaceae plant extracts and a honey sample, with relative recoveries in the range of 90.28–122.0%.
History
Publication title
Journal of Separation ScienceVolume
41Issue
20Pagination
3910-3917ISSN
1615-9306Department/School
School of Natural SciencesPublisher
Wiley-VCH Verlag GmbH & Co. KGaAPlace of publication
GermanyRights statement
Copyright 2018 WILEY-VCH Verlag GmbH & Co. KGaA, WeinheimRepository Status
- Restricted