Citation: Suo Zhu Wu, Shao Min Shuang, Yan Zhang, Zhong Ping Li, Martin M. F. Choi, Cai Hong Zhang, Chuan Dong. Study on mode-filtered light sensor for methane detection[J]. Chinese Chemical Letters, ;2009, 20(2): 210-212. doi: 10.1016/j.cclet.2008.11.006 shu

Study on mode-filtered light sensor for methane detection

a Research Center of Environmental Science and Engineering, School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China;
b Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR, China

Received Date: 26 June 2008

Fund Project: This work was supported by the Key Project of National Natural Science Foundation of China (No. 50534100), the Project of Taiyuan Science and Technology Bureau of Shanxi Province and the Foundation for Returned Overseas Chinese Scholars of Shanxi Province.

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.
- Mode-filtered light,
- Methane,
- Cryptophane A
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