文献类型：会议论文

英文题名：Determination of dimethyl ether in air by cataluminescence-based gas sensor

作者：Gu, Chun Xiu[1]; Xing, Zheng[1]; Cai, Xin[1]; Zhang, Jie[1]; Gao, Bin Juan[1]; Zhou, Kao Wen[1]

第一作者：谷春秀

机构：[1] Biochemical Engineering College, Beijing Union University, Beijing 100023, China

第一机构：北京联合大学生物化学工程学院

会议论文集：Industrial Materials - Applications, Products, and Technologies

会议日期：April 1, 2013 - April 2, 2013

会议地点：Beijing, China

语种：英文

外文关键词：Carbon monoxide - Chemical sensors - Gas detectors - Manganese oxide - Optimization - Sulfur dioxide

摘要：A rapid and sensitive cataluminescence-based gas sensor utilizing nanosized Y2MnO5 as the sensing materials for determining dimethyl ether in air was proposed. The luminescence characteristics and the optimal conditions were investigated in detail. The gas sensor showed high selectivity for dimethyl ether at 620 nm and satisfying activity at 210°C under the optimized conditions. The linear range of cataluminescence intensity versus concentration of dimethyl ether was 5~120 mg/m3, and the detection limit (3σ) was 3 mg/m3. No or weak interference was observed while the foreign substances, such as formaldehyde, ammonia, ethanol, benzene, carbon monoxide and sulfur dioxide, were passing through the sensor under selected conditions. The gas sensor displayed good stability for continuously introducing dimethyl ether over 100 h, and allowed real-time monitoring of dimethyl ether in air. ? (2013) Trans Tech Publications, Switzerland.