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Authors: Wu JM, Wang YY, Yan CL
Article Title: Selective adsorption of copper ion by copper ion templated alginate gel.
Publication date: 2002
Journal: Chinese Journal of Analytical Chemistry
Volume: 30
Issue: (12)
Page numbers: 1414-1417.
Alternative URL: http://en.cnki.com.cn/Article_en/CJFDTotal-FXHX200212001.htm
Abstract: A new alginate gel (Cu-alginate) was prepared by ion imprinting technology in which the copper ion was used as a template ion. Its capability of selective adsorption of copper ion was studied by batch and column infiltration experiment. The concentration of copper ion in tap water can be easily determined by atomic adsorption spectroscopy after the water sample was enriched by this gel. The results show that the gel has high selective adsorption capability to copper ion in the presence of non-heavy metal ions such as K+, Na+, Ca2+, and heavy metal ions Ni2+, Cd2+. The selectivity and adsorption capacity of Cu-alginate gel was superior to that of Ca-alginate gel in which the calcium ion was used as a templated ion. Enriched by the Cu-alginate gel, the recovery rate of Cu2+ in tap water sample can reach 97.7%
Template and target information: copper ion, Cu(II)
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