Sensitivity Improvement in the Detection of Trichloroethylene by Applying Oxidizing Agents to the Quartz Crystal Microbalance Method

摘要

A new quartz crystal microbalance-based method has been developed for high-sensitivity detection of trichloroethylene.The method uses oxidizing agents such as lead dioxide and sulfuric acid,by which trichloroethylene is converted into hydroen chloride,which in turn reacts directly with a copper electrode placed on the quartz crystal surface.The new method enables the measurement of very low concentrations of trichloroethylene,and has a detection limit comparable to the Japanese Environmental Standard (0.2 mg(centre dot)m~(-3)).