Detection of Volatile S- and N-containing Compounds Based on SAW Array Sensor
American Journal of Chemical and Biochemical Engineering
Volume 1, Issue 1, December 2017, Pages: 35-39
Received: Jun. 7, 2017; Accepted: Jul. 6, 2017; Published: Aug. 3, 2017
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Authors
Ning Mu, State Key Laboratory of NBC Protection for Civilian, Beijing, China
Yong Pan, State Key Laboratory of NBC Protection for Civilian, Beijing, China
Shengyu Shao, State Key Laboratory of NBC Protection for Civilian, Beijing, China
Liu Yang, State Key Laboratory of NBC Protection for Civilian, Beijing, China
Wen Wang, Institute of Acoustic, Chinese Academy of Science, Beijing, China
Shitang He, Institute of Acoustic, Chinese Academy of Science, Beijing, China
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Abstract
A chemical sensing system based on arrays of surface acoustic wave (SAW) resonators has been developed for identification of S- and N-containing Compounds. The four resonators in the array are coated with four kinds of different chemoselective polymers: triethanolamine (TEA), nano-fibular polyaniline (PANI), glutamic acid hydrochloride (GAH) and multi walled carbon nanotubes (MWCN) modified with tungsten trioxide, which are used for the detection of harmful gases H2S, SO2, NH3 and NO2 respectively. The harmful gases were detected under room conditions, the response time, the response value, the recovery speed and the detection tendency are obtained. The characteristics of various gases are extracted from the experiment datum. The datum is processed and Pattern recognition algorithms are developed to identify four different of gases. The stability experiments are also made to prove the accuracy of the results of the detection. It is concluded that the harmful gases, including H2S, SO2, NH3 and NO2, could be detected rapidly and accurately by the SAW array sensor.
Keywords
Detection, Surface Acoustic Wave (SAW), Array, Harmful Gases
To cite this article
Ning Mu, Yong Pan, Shengyu Shao, Liu Yang, Wen Wang, Shitang He, Detection of Volatile S- and N-containing Compounds Based on SAW Array Sensor, American Journal of Chemical and Biochemical Engineering. Vol. 1, No. 1, 2017, pp. 35-39. doi: 10.11648/j.ajcbe.20170101.15
Copyright
Copyright © 2017 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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