Compact Room Temperature-Operated Sensing System for Methanol and Ethanol Mixture Separation and Quantification
文献类型： 会议论文
第一作者： Meng-Qun Feng
作者： Meng-Qun Feng 1 ; Tanju Yildirim 2 ; Alexandru Nica 1 ; Kosuke Minami 3 ; Kota Shiba 3 ; Genki Yoshikawa 1 ;
作者机构： 1.Materials Science and Engineering, Graduate School of Pure and Applied Science, University of Tsukuba,
2.Faculty of Science and Engineering, Southern Cross University,
3.Research Center for Macromolecules and Biomaterials, National Institute for Materials Science (NIMS),
关键词： Olfactory sensors;Room temperature-operated;Real-time;Gas mixture;Separation;Quantification;MSS
会议名称： [ "IEEE Sensors Conference" , "IEEE Sensors"]
主办单位：
页码： 2148-2151
摘要： For practical olfactory sensing with a safe and low-power system, it is important to be able to operate easily at room temperature. However, this has not been a trivial task to achieve with existing conventional gas separation and sensing devices. In this study, a novel compact room temperature-operated sensing system is proposed to separate and quantify each component in a vapor mixture with simple operation. The sensing system consists of a portable and replaceable gas separation column and a sensing module containing a nanomechanical Membrane-type Surface stress Sensor, MSS. Proton transfer reaction time-of-flight mass spectrometry (PTR-TOF-MS) results show that the gas separation column can clearly separate methanol and ethanol in their mixtures. The sensing signals from the column-MSS system are consistent with the peaks measured by PTR-TOF-MS. For mixtures of methanol and ethanol with various ratios, a clear correspondence is observed between the output signals and the theoretically calculated vapor pressure ratios of each mixture. The developed compact room temperature-operated sensing system can discriminate and quantify different methanol and ethanol mixtures, paving the way for practical applications of olfactory sensing devices.
分类号： tb907.1-53`tp2
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