文献类型：会议论文

英文题名：Real-time Monitoring of Acetaldehyde in Air by Cataluminescence-based Gas Sensor

作者：Zhou, Kaowen[1];Gu, Chunxiu[1];Ma, Dongping[1];Cao, Hui[1]

第一作者：周考文

通讯作者：Zhou, KW[1]

机构：[1]Beijing Union Univ, Biochem Engn Coll, Beijing 100023, Peoples R China

第一机构：北京联合大学生物化学工程学院

通讯机构：[1]corresponding author), Beijing Union Univ, Biochem Engn Coll, Beijing 100023, Peoples R China.|[1141726]北京联合大学生物化学工程学院;[11417]北京联合大学;

会议论文集：2nd International Conference on Applied Mechanics, Materials and Manufacturing (ICAMMM 2012)

会议日期：NOV 17-18, 2012

会议地点：Changsha, PEOPLES R CHINA

语种：英文

外文关键词：Acetaldehyde; Cataluminescence; Gas Sensor; Nanosized Materials

摘要：A highly sensitive, simple and selective gas sensor was developed for the determination of trace acetaldehyde in air based on cataluminescence (CTL) on nano-sized Al2Ti2O7. The gas sensor showed high selectivity for acetaldehyde at 515 urn and satisfying activity at 295 degrees C. The linear range of the CTL intensity versus concentration of acetaldehyde was 1 similar to 65 mg/m(3), and the detection limit (3 sigma) was 0.5 mg/m(3). No interference was observed while the foreign substances, such as ammonia, ethanol, formaldehyde, benzene, carbon monoxide and sulfur dioxide, were passing through the sensor. The gas sensor displayed good stability for continuously introducing 10 mg/m(3) acetaldehyde over 60 h, and allowed real-time monitoring of acetaldehyde in air.