title: Diagnostic assay of trace lead in an ex vivo tissue using a combination electrode.
abstract: A voltametric diagnosis of trace lead was performed using macro type combination sensors of fluorine-doped graphite pencil electrodes (FPE). Two pencils were used as the reference and auxiliary instead of expensive Ag/AgCl standards and Pt counters. Under optimized conditions, a square wave (SW) stripping working curve was attained at 10-70 mg/L and a micro range of 10-70 μg/L. The developed sensor was not only inexpensive but also had a fast (90-s) accumulation time. An analytical detection limit of 10 μg/L was obtained. The results were applied to an ex vivo tissue and an artificial turf.
authors.affiliation: Biosensor Research Institute, Seoul National University of 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: Hai-Soo
authors.initials: HS
authors.lastname: Yoo
authors.forename: Nam Jeong
authors.initials: NJ
authors.lastname: Kim
authors.forename: Jin Hui
authors.initials: JH
authors.lastname: Lee
authors.forename: Sung Soo
authors.initials: SS
authors.lastname: Woo
authors.forename: Min Gyu
authors.initials: MG
authors.lastname: Kwon
authors.forename: Sang Hoon
authors.initials: SH
authors.lastname: Lee
mesh_terms: D000818:Animals; D004563:Electrochemistry / Q000379:methods*; D004566:Electrodes; D004784:Environmental Monitoring; D005461:Fluorine / Q000737:chemistry; D006801:Humans; D007202:Indicators and Reagents; D007854:Lead / Q000032:analysis*; D009835:Oligochaeta; D012623:Seawater / Q000032:analysis
chemical_list: D007202:Indicators and Reagents; D005461:Fluorine; D007854:Lead