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Reference type: Journal
Authors: Madikizela LM, Chimuka L
Article Title: Determination of ibuprofen, naproxen and diclofenac in aqueous samples using a multi-template molecularly imprinted polymer as selective adsorbent for solid-phase extraction.
Publication date: 2016
Journal: Journal of Pharmaceutical and Biomedical Analysis
Volume: 128
Page numbers: 210-215.
DOI: 10.1016/j.jpba.2016.05.037
Alternative URL: https://www.researchgate.net/publication/303511354_Determination_of_ibuprofen_naproxen_and_diclofenac_in_aqueous_samples_using_a_multi-template_molecularly_imprinted_polymer_as_selective_adsorbent_for_solid-phase_extraction

Abstract: This study describes the application of multi-template molecularly imprinted polymer (MIP) as selective sorbent in the solid-phase extraction (SPE) of naproxen, ibuprofen and diclofenac from wastewater and river water. MIP was synthesized at 70 -ŚC by employing naproxen, ibuprofen and diclofenac as multi-templates, ethylene glycol dimethacrylate, 2-vinyl pyridine and toluene as cross-linker, functional monomer and porogen, respectively. Wastewater and river water samples (pH 2.5) were percolated through SPE cartridge packed with 50 mg of the MIP. The cartridge was washed with 2 mL of methanol-water 10:90% (v:v) prior to elution with 2 mL of acetic acid-acetonitrile 20:80% (v:v). Quantification of eluted compounds was performed with high performance liquid chromatography equipped with photo diode array detection. The detection limits were 0.15, 1.00 and 0.63 μgL-1 for naproxen, ibuprofen and diclofenac, respectively. Recoveries for naproxen, ibuprofen and diclofenac in deionized water spiked at 5 and 50 μgL-1 were greater than 80%. Ibuprofen was the most frequently detected compound with maximum concentrations of 221, 67.9 and 11.4 μgL-1 in wastewater influent, effluent and river water, respectively
Template and target information: multi-template, naproxen, ibuprofen, diclofenac
Author keywords: Multi-template molecularly imprinted polymer, Solid-phase extraction, Wastewater treatment plants, river water

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