A novel ion-imprinted polymeric sorbent for separation and determination of chromium(III) species in wastewater

Authors : Barbara LESNIEWSKA, İwona JAKUBOWSKA, Elzbieta ZAMBRZYCKA, Beata GodlewskaZYLKIEWICZ

Pages : 933-943

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Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :A new chromiuminsert ignore into journalissuearticles values(III); ion-imprinted polymer insert ignore into journalissuearticles values(IIP); was prepared from a Crinsert ignore into journalissuearticles values(III);-nicotinate complex insert ignore into journalissuearticles values(template);, acrylamide insert ignore into journalissuearticles values(functional monomer);, and ethylene glycol dimethacrylate insert ignore into journalissuearticles values(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 Crinsert ignore into journalissuearticles values(III); ions. The conditions for dynamic separation of Crinsert ignore into journalissuearticles values(III); on IIP were optimised. Crinsert ignore into journalissuearticles values(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. Crinsert ignore into journalissuearticles values(III); ions were determined by flame atomic absorption spectrometry insert ignore into journalissuearticles values(FAAS); with a detection limit of 0.08 $\mu $g mL$^{-1}$. The method was successfully applied to determine Crinsert ignore into journalissuearticles values(III); species in wastewater and reference material RES 25.2 with a reproducibility of 1.8%-3.4%.
Keywords : Chromium, speciation analysis, ion imprinted polymers