Please use this identifier to cite or link to this item: http://hdl.handle.net/11452/30036
Title: Dummy molecularly imprinted microbeads as solid-phase extraction material for selective determination of phthalate esters in water
Authors: Uludağ Üniversitesi/Fen-Edebiyet Fakültesi/Kimya Bölümü.
Özer, Elif Tümay
Osman, Bilgen
Yazıcı, Tuğçe
AAI-3137-2021
ABF-4791-2020
37047586000
15221651200
57193902495
Keywords: Biochemistry & molecular biology
Chemistry
Dummy molecular imprinting
GC–MS
Phthalate esters
Solid phase extraction
Chromatographic determination
Polymers
Microspheres
Template
Sorbent
Samples
Spectrometry
Separation
Amino acids
Esters
Ethylene
Ethylene glycol
Fourier transform infrared spectroscopy
Molecules
Phase separation
Scanning electron microscopy
Styrene
Synthesis (chemical)
X ray photoelectron spectroscopy
Extraction
Di-2-ethylhexyl phthalate
Ethylene glycol dimethacrylate
GC-MS
Molecular imprinting
Phthalate ester
Simultaneous determinations
Solid-phase extraction
Suspension polymerization
Beverages
Microextraction
Issue Date: 7-Apr-2017
Publisher: Elsevier
Citation: Özer. E. T. vd. (2017). ''Dummy molecularly imprinted microbeads as solid-phase extraction material for selective determination of phthalate esters in water''. Journal of Chromatography A. 1500, 53-60.
Abstract: The aim of this study was to investigate the usability of newly synthesized dummy molecularly imprinted microbeads (DMIMs) as a solid phase extraction (SPE) material to determine six phthalate esters (PEs) in water by GC-MS analysis. Diethyl phthalate (DEP) was used as a dummy template to prepare poly(ethylene glycol dimethacrylate N-methacryloyl-L-tryptophan methyl ester) [PEMATrp)] DMIMs by using suspension polymerization. The PEMATrp DMIMs were characterized by using Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM). Firstly, the adsorption capacities of the DMIMs prepared in different template molecule (DEP) to functional monomer (MATrp) ratios were investigated by using DEP solutions in the concentration range of 1-500 mg/L, at pH 3.0. Styrene and vanillic acid were used to evaluate the selectivity of the prepared DMIMs towards the template molecule (DEP). Then, the best analytical conditions were investigated for the simultaneous determination of dimethyl phthalate (DMP), diethyl phthalate (DEP), di-n-butyl phthalate (DBP), benzylbutyl phthalate (BBP), di-(2-ethylhexyl) phthalate (DEHP) and di-n-octyl phthalate (DnOP) in aqueous media by using the PEMATrp DMIMs as SPE material. Validation experiments showed that the PEMATrp DMIMs-SPE method had good linearity at 12.5-250.0 mu g/L (0.988-0.999), good precision (1.2-5.9%), and limits of detection in a range of 0.31-0.41 mu g/L.
URI: https://doi.org/10.1016/j.chroma.2017.04.013
https://www.sciencedirect.com/science/article/pii/S0021967317305502
1873-3778
http://hdl.handle.net/11452/30036
ISSN: 0021-9673
Appears in Collections:Scopus
Web of Science

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