Publication Details

Category Text Publication
Reference Category Journals
DOI 10.1016/j.chroma.2015.07.107
Title (Primary) Ion-exchange molecularly imprinted polymer for the extraction of negatively charged acesulfame from wastewater samples
Author Zarejousheghani, M.; Schrader, S.; Möder, M.; Lorenz, P.; Borsdorf, H. ORCID logo
Source Titel Journal of Chromatography A
Year 2015
Department ANA; MET
Volume 1411
Page From 23
Page To 33
Language englisch
Supplements https://ars.els-cdn.com/content/image/1-s2.0-S0021967315011152-mmc1.docx
Keywords Acesulfame; (Vinylbenzyl)trimethylammonium chloride phase transfer; Molecularly imprinted polymer; Ammonium salt; Wastewater
UFZ wide themes RU3;
Abstract Acesulfame is a known indicator that is used to identify the introduction of domestic wastewater into water systems. It is negatively charged and highly water-soluble at environmental pH values. In this study, a molecularly imprinted polymer (MIP) was synthesized for negatively charged acesulfame and successfully applied for the selective solid phase extraction (SPE) of acesulfame from influent and effluent wastewater samples. (Vinylbenzyl)trimethylammonium chloride (VBTA) was used as a novel phase transfer reagent, which enhanced the solubility of negatively charged acesulfame in the organic solvent (porogen) and served as a functional monomer in MIP synthesis. Different molecularly imprinted polymers were synthesized to optimize the extraction capability of acesulfame. The different materials were evaluated using equilibrium rebinding experiments, selectivity experiments and scanning electron microscopy (SEM). The most efficient MIP was used in a molecularly imprinted-solid phase extraction (MISPE) protocol to extract acesulfame from wastewater samples. Using high-performance liquid chromatography–tandem mass spectrometry (HPLC–MS–MS) analysis, detection and quantification limits were achieved at 0.12 μg L−1 and 0.35 μg L−1, respectively. Certain cross selectivity for the chemical compounds containing negatively charged sulfonamide functional group was observed during selectivity experiments.
Persistent UFZ Identifier https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=16520
Zarejousheghani, M., Schrader, S., Möder, M., Lorenz, P., Borsdorf, H. (2015):
Ion-exchange molecularly imprinted polymer for the extraction of negatively charged acesulfame from wastewater samples
J. Chromatogr. A 1411 , 23 - 33 10.1016/j.chroma.2015.07.107