Study on mode-filtered light sensor for methane detection  

作　　者：Suo Zhu Wu Shao Min Shuang Yan Zhang Zhong Ping Li Martin M.E Choi Cai Hong Zhang Chuan Dong 

机构地区：[1]Research Center of Environmental Science and Engineering, School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China [2]Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR, China

出　　处：《Chinese Chemical Letters》2009年第2期210-212,共3页中国化学快报（英文版）

基　　金：supported by the Key Project of National Natural Science Foundation of China(No.50534100);Project of Taiyuan Science and Technology Bureau of Shanxi Province;the Foundation for Returned Overseas Chinese Scholars of Shanxi Province.

摘　　要：A novel mode-filtered light gas sensor has been reported. It was constructed by inserting an optical fiber deposited by a thin silicone cladding of cryptophane A into a fused-silica capillary. When different concentration of methane gas was introduced to the sensor, the phenomenon that mode-filtered light intensity decreased with the increasing concentration of methane was observed. And a linear relationship was obtained within the methane concentration range of 0.0-16.0% （v/v）. The detection limit was 0.06% （v/v）. The mode-filtered light sensor has been exploited to respond to various concentrations of methane gas at room temperature.A novel mode-filtered light gas sensor has been reported. It was constructed by inserting an optical fiber deposited by a thin silicone cladding of cryptophane A into a fused-silica capillary. When different concentration of methane gas was introduced to the sensor, the phenomenon that mode-filtered light intensity decreased with the increasing concentration of methane was observed. And a linear relationship was obtained within the methane concentration range of 0.0-16.0% （v/v）. The detection limit was 0.06% （v/v）. The mode-filtered light sensor has been exploited to respond to various concentrations of methane gas at room temperature.

关 键 词：Mode-filtered light METHANE Cryptophane A 

分 类 号：O657.71[理学—分析化学] TP212[理学—化学]