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KMID : 1059520070510050412
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Journal of the Korean Chemical Society
2007 Volume.51 No. 5 p.412 ~ p.417
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Measuring Oxytetracycline Using a Simple Prepared DNA Immobilized on a Carbon Nanotube Paste Electrode in Fish Tissue
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Ly Suw-Young
Lee Chang-Hyun
Jung Young-Sam
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Abstract
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A simple prepared paste electrode (PE) of DNA immobilized on a carbon nanotube was utilized for monitoring the antibacterial agent oxytetracycline (OTC), using square-wave anodic stripping voltammetry (SWASV) and cyclic voltammetry (CV). Given these conditions, SWASV and CV working ranges were observed within 1-10 ngL-1 OTC. In the SWASV and CV for OTC concentrations of 0.1 mgL-1, the relative standard deviations (n=15) were 0.068 and 0.067, respectively. At the optimized condition, the detection limit was found to be 0.4 ngL-1 OTC. This method was applied to the hatchery fish tissue.
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KEYWORD
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Oxytetracycline, Square Wave Stripping, Cyclic Voltammetry, Carbon Nanotube, DNA, Paste Electrode
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