Ueyama S, Hijikata K, Hirotsuji J
Advanced Technology R&D Center, Mitsubishi Electric Corporation, Amagasaki, Hyogo, Japan.
Water Sci Technol. 2002;45(4-5):175-80.
A water monitoring system with a new chemical sensor for oil contamination was developed. The sensor had an organic polymer film on a quartz crystal microbalance (QCM). The organic film was a hydrocarbon polymer and had high affinities for the organic compounds of petroleum products such as gasoline, kerosene, diesel oil and fuel oil. The monitoring system as composed of a sampling part, a purging part, a humidity control part and a sensor part. The oil in contaminated river water could be detected whose threshold odour number (TON) was less than three. The detecting time was less than 5 min depending on the oil kindness. This system was tested using artificially contaminated river water with the oils, to be found that the sensitivity was kept steady for longer than 6 months with 400 detections of diesel oil and heavy oil. Moreover, the oil kind could be discriminated with only one sensor device by analyzing the desorption response curves obtained by flowing a clean air on the sensor instead of the purging air.
开发了一种带有用于油污的新型化学传感器的水监测系统。该传感器在石英晶体微天平（QCM）上有一层有机聚合物薄膜。有机薄膜是一种烃类聚合物，对汽油、煤油、柴油和燃料油等石油产品的有机化合物具有高亲和力。监测系统由采样部分、吹扫部分、湿度控制部分和传感器部分组成。可以检测到污染河水中阈值气味数（TON）小于3的油。根据油的种类，检测时间小于5分钟。该系统使用人工用这些油污染的河水进行测试，发现对柴油和重油进行400次检测时，灵敏度可保持稳定超过6个月。此外，通过分析在传感器上流动清洁空气而非吹扫空气所获得的解吸响应曲线，仅用一个传感器装置就能区分油的种类。
