title: Toxicological investigation of radioactive uranium in seawater.
abstract: Trace uranium detection measurement was performed using DNA immobilized on a graphite pencil electrode (DGE). The developed probe was connected to the portable handheld voltammetric systems used for seawater analysis. The sensitive voltammogram was obtained within only 30 s accumulation time, and the anodic stripping working range was attained at 100~800 μg/l U and 10~50 μg/l. The statistic relative standard deviation of 30.0 mg/l with the 15(th) stripping was 0.2115. Here, toxicological and analytical application was performed in the seawater survey in a contaminated power plant controlling water. The results were found to be applicable for real-time toxicological assay for trace control.
authors.affiliation: Biosensor Research Institute, Seoul National University of Science and Technology, Seoul 139-743, Korea.
authors.forename: Suw Young
authors.initials: SY
authors.lastname: Ly
authors.forename: Jeong Mi
authors.initials: JM
authors.lastname: Bae
authors.forename: Jin
authors.initials: J
authors.lastname: Kim
keywords: DNA immobilization; Trace; Uranium; Voltammetry