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Reference type: Journal
Authors: Lesniewska B, Jakubowska I, Zambrzycka E, Godlewska-Zylkiewicz B
Article Title: A novel ion-imprinted polymeric sorbent for separation and determination of chromium(III) species in wastewater.
Publication date: 2016
Journal: Turkish Journal of Chemistry
Volume: 40
Issue: (6)
Page numbers: 933-943.
Alternative URL: http://journals.tubitak.gov.tr/chem/abstract.htm?id=19786

Abstract: A new chromium(III) ion-imprinted polymer (IIP) was prepared from a Cr(III)-nicotinate complex (template), acrylamide (functional monomer), and ethylene glycol dimethacrylate (cross-linking agent) using 2,2'-azobisisobutyronitrile as the radical initiator. IIP was characterised and used as a selective sorbent for the solid-phase extraction of Cr(III) ions. The conditions for dynamic separation of Cr(III) on IIP were optimised. Cr(III) ions are selectively retained on the sorbent in a pH range from 9 to 10 and can be eluted with 4 mol L-1 acetic acid. Cr(III) ions were determined by flame atomic absorption spectrometry (FAAS) with a detection limit of 0.08 μg mL-1 . The method was successfully applied to determine Cr(III) species in wastewater and reference material RES 25.2 with a reproducibility of 1.8% - 3.4%.
Template and target information: chromium ion, Cr(III)
Author keywords: Chromium, speciation analysis, Ion-imprinted polymers


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