An Automated Electronic Tongue for In-Situ Quick Monitoring of Trace Heavy Metals in Water Environment

作者：Cai Wei^*; Li Yi; Gao Xiaoming; Guo Hongsun; Zhao Huixin; Wang Ping

来源：13th International Symposium on Olfaction and the Electronic Nose, Italy, 2009-04-15 to 2009-04-17.

DOI：10.1063/1.3156593

• Electronic Tongue
• Trace Heavy Metals
• MEA
• MLAPS

An automated electronic tongue instrumentation has been developed for in-situ concentration determination of trace heavy metals in water environment. The electronic tongue contains two main parts. The sensor part consists of a silicon-based Hg-coated Au microelectrodes array (MEA) for the detection of Zn(II), Cd(II), Pb(II) and Cu(II) and a multiple light-addressable potentiometric sensor (MLAPS) for the detection of Fe(III) and Cr(VI). The control part employs pumps, valves and tubes to enable the pick-up and pretreatment of aqueous sample. The electronic tongue realized detection of the six metals mentioned above at part-per-billion (ppb) level without manual operation. This instrumentation will have wide application in quick monitoring and prediction the heavy metal pollution in lakes and oceans.

• 出版日期2009
• 单位浙江大学