使用组合电极对离体组织中的痕量铅进行诊断检测。
Diagnostic assay of trace lead in an ex vivo tissue using a combination electrode.
机构信息
Biosensor Research Institute, Seoul National University of Technology, 172, gongreung 2 dong Nowon gu, Seoul 139-743, South Korea.
出版信息
Environ Toxicol Pharmacol. 2011 Jan;31(1):51-6. doi: 10.1016/j.etap.2010.09.005. Epub 2010 Sep 15.
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.
采用掺氟石墨电极（FPE）的宏观组合传感器进行痕量铅的伏安诊断。两根铅笔被用作参比和辅助电极，而不是昂贵的Ag/AgCl 标准和 Pt 对电极。在优化条件下，在 10-70mg/L 的范围内获得了方波（SW）剥离工作曲线，在 10-70μg/L 的微范围内也获得了方波（SW）剥离工作曲线。所开发的传感器不仅价格低廉，而且具有快速（90s）的积累时间。检测限达到 10μg/L。该方法应用于离体组织和人造草皮。
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