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Reference type: Journal
Authors: Li HZ, Pei MS, Zhang J, Wei Q
Article Title: Flow-Injection Chemiluminescence Determination of Trace Copper On-Line Separation and Enrichment by Ion Imprinted Polymer.
Publication date: 2011
Journal: Spectroscopy and Spectral Analysis
Volume: 31
Issue: (6)
Page numbers: 1472-1475.
DOI: 10.3964/j.issn.1000-0593(2011)06-1472-04
Alternative URL: http://www.gpxygpfx.com/qikan/epaper/zhaiyao.asp?bsid=19300

Abstract: In the present study, Cu(II)-imprinted polymer was prepared and used as an effective method for separation and enrichment of Cu(II) ion in samples. An on-line preconcentration and extraction flow-injection system using solid phase extraction (SPE) column packed with prepared ion imprinted polymer (IIP) was set up. The column was eluted with a mixture of ethanol and H2SO4 after preconcentration. A sensitive and simple chemiluminescence(CL) method using flow-injection has been developed for the determination of copper. The method is based on the fact that traces of Cu(II) exert a catalytic action on the oxidation between morin by KMnO4 solution. After optimizing the different experimental parameters, a calibration graph was obtained over the concentration range of 0 to 10 μgmL-1 for Cu(II) and r=0.996 8. The detection limit is 0.001 2 μgmL-1. The recoveries are between 95% and 105% and the standard relative deviations( RSD) are less than 3% at 4.0 μgmL-1 (n=9) level was obtained. The new chemiluminescence determination for copper has been established. The method can be satisfactorily applied to the determination of copper in sample.
Template and target information: copper ion, Cu(II)
Author keywords: flow-injection, chemiluminescence, ion imprinted polymer, On-line separation, Copper (II)

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