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Reference type: Journal
Authors: Singh DK, Mishra S
Article Title: Synthesis of a New Cu(II)-Ion Imprinted Polymer for Solid Phase Extraction and Preconcentration of Cu(II).
Publication date: 2009
Journal: Chromatographia
Volume: 70
Issue: (11)
Page numbers: 1539-1545.
DOI: 10.1365/s10337-009-1379-2

Abstract: Abstract A new Cu(II)-ion imprinted polymer (IIP) has been synthesized by copolymerizing salicylic acid and formaldehyde as a monomer and crosslinker, respectively in the presence of Cu(II)-4-(2-pyridylazo) resorcinol complex. The imprinted Cu(II) ions were completely removed by leaching the IIP with 0.05 M EDTA. The maximum adsorption capacity for Cu(II) ions was 310 ?g g?1 at pH 6. The IIP was repeatedly used in adsorption–desorption experiments for seven times with recoveries ~95%. The relative selectivity factor (? r) values of Cu(II)/Zn(II), Cu(II)/Cd(II), Cu(II)/Ni(II) and Cu(II)/Co(II) are 3.17, 2.90, 2.47 and 3.37, respectively. The detection limit corresponding to three times the standard deviation of the blank was found to be 3.0 ?g L?1. The developed IIP has also been tested for preconcentration and recovery of Cu(II) ions from water samples
Template and target information: copper ion, Cu(II)
Author keywords: ion imprinted polymer, solid phase extraction, preconcentration, Cu(II), 4-(2-Pyridylazo) resorcinol


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