title: Detection of trace cobalt ions in in vivo plant cells using a voltammetric interlocking system.
abstract: This experiment was conducted to establish a system for detecting trace cobalt ions in water and plant tissues using a voltammetric in vivo sensor. Cyclic and stripping voltammetry was devised from hand-made, macro-type implantable three-electrode systems. The results reached micro and nano working ranges at 100 sec accumulation time. The statistical detection limit (S/N) was attained at 6.0 ng L(-1). For the in vivo application, direct assay of cobalt ions was carried out in Eichhornia crassipes (EC) deep tissue in real time with a preconcentration time of 100 s. Interfaced techniques can be interlocked with other control systems.
authors.affiliation: Biosensor Research Institute, Seoul National University of Science & Technology, 172 Gongreung 2-dong, Nowon-gu, Seoul, 139-743, South Korea. suwyoung@snut.ac.kr
authors.forename: Suw Young
authors.initials: SY
authors.lastname: Ly
authors.forename: Myoung Ho
authors.initials: MH
authors.lastname: Shin
authors.forename: Chang Hyun
authors.initials: CH
authors.lastname: Lee
authors.forename: Jin Hui
authors.initials: JH
authors.lastname: Lee
authors.forename: Mi Sook
authors.initials: MS
authors.lastname: Kim
authors.forename: Sang Woo
authors.initials: SW
authors.lastname: Ji
authors.forename: Dong Won
authors.initials: DW
authors.lastname: Park
mesh_terms: D003035:Cobalt / Q000032:analysis* / Q000378:metabolism; D031806:Eichhornia / Q000378:metabolism*; D004566:Electrodes; D004568:Electrodiagnosis
chemical_list: D003035:Cobalt