Trichloroethylene Sensor by Using Electrodeposited Pb-Modified Graphite Strip Electrode

A new trichloroethylene ~TCE! sensor was developed by using a Pb-modified graphite strip electrode in an organic solution. The major factors of preparing electrode or sensing characteristics such as electrolyte concentration, electrodeposition current density, electrodeposition time, and temperature, for preparing electrodes, were explored. The results show that both the electrodeposition current density and time have a major and positive effect on the sensing reaction, while the electrodeposition temperature shows a negative effect. The best electrodeposition condition and electrolyte composition were obtained. Additionally, the optimal sensing condition is 22.10 V sensing potential ~vs. Ag/Ag

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