中文摘要：

研究了二甲醚气体通过石英加热管表面时的化学发光现象,利用此发光现象设计了检测二甲醚的传感器。此传感器由反应器、程序升温系统、单色器系统和光电检测及数据处理系统组成。化学发光强度与二甲醚浓度在0.59～118.6g/m3内呈良好的线性关系（r=0.9995）;检出限为0.19g/m3。苯、甲醛等气体通过此传感器时,没有引起干扰。由于此传感器不涉及颗粒态催化剂的制备和固定过程,因此制造工艺简单、成本经济,且具有更好的稳定性和更长的寿命。应用本方法可方便快速地测定空气中的二甲醚气体。

英文摘要：

A sensor for detecting dimethyl ether gas was designed based on the cataluminescence phenomenon when dimethyl ether gas was passing through the surface of the quartz heater.The sensor was constituted by reactor,temperature-programmed system,monochromator and optoelectronic measuring and data processing system.The linear range of cata versus concentration of dimethyl ether is 0.59-118.6 g/m 3,with a detection limit of 0.19 g/m 3 .No interference was observed while the foreign substances such as benzene,formaldehyde etc were passing through the sensor.Because the sensor does not need to prepare and fix with the granular materials,it has the advantage of simple manufactory technology,low cost,good stability and long life for work.The method has been applied to rapidly detect the dimethyl ether in the air.