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Authors: Hu NN, Su LJ, Kang QS, Huang WH
Article Title: Enrichment and Chemiluminescence Detection of Cd2+ in a Cd2+ Imprinted Polymer Monolith Integrated in a Polydimethylsiloxane Microchip.
Publication date: 2013
Journal: Journal of Analytical Science
Volume: 29
Issue: (1)
Page numbers: 1-5.
Alternative URL: http://en.cnki.com.cn/Article_en/CJFDTotal-FXKX201301002.htm
Abstract: We synthesized cadmium ion imprinted monolithic column in polydimethylsiloxane(PDMS) chip using in-situ polymerization technique,with the cadmium ion as a template,acrylamide and 4-vinylpyridine as functional monomer,ethyleneglycol dimethacrylate(EGDMA) as a crosslinking agent,cyclohexanol/dodecanol as porogen.A method for enrichment-electrophoresis-online detection of metal ion was therefore developed.The results from Scanning electron microscope(SEM) and fourier transform infrared spectroscopy(FTIR) indicated that the monolith has a good pore structure.We combined the cadmium ion imprinted monolithic column with solid phase extraction,and optimized the conditions for enrichment/elution of Cd2+ and investigated the adsorption and enrichment capacity on ion imprinted monolith as well.Finally,the integration of the Cd2+ enrichment,chip electrophoresis and chemiluminescence detection using luminol-hydrogen peroxide system has been realized on the microfluidic chip.
Template and target information: cadmium ion, Cd(II)
Author keywords: Microfluidic chip, Metal ion imprinted monolith, chemiluminescence, Cd2+
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