Publication: E-nose based on metallo-tetraphenylporphyrin/ SWNT-COOH for alcohol detection
Issued Date
2013-12-23
Resource Type
Other identifier(s)
2-s2.0-84890457056
Rights
Mahidol University
Rights Holder(s)
SCOPUS
Bibliographic Citation
2013 IEEE International Conference of Electron Devices and Solid-State Circuits, EDSSC 2013. (2013)
Suggested Citation
Satetha Siyang, Thara Seesaard, Panida Lorwongtragool, Teerakiat Kerdcharoen E-nose based on metallo-tetraphenylporphyrin/ SWNT-COOH for alcohol detection. 2013 IEEE International Conference of Electron Devices and Solid-State Circuits, EDSSC 2013. (2013). doi:10.1109/EDSSC.2013.6628073 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/31572
Research Projects
Organizational Units
Authors
Journal Issue
Thesis
Title
E-nose based on metallo-tetraphenylporphyrin/ SWNT-COOH for alcohol detection
Other Contributor(s)
Abstract
A handheld electronic nose (e-nose) based on metallo-tetraphenylporphyrin/ carboxylic-functionalized single- walled carbon nanotube (MTPP/SWNT-COOH) chemical gas sensors has been demonstrated as a promising instrument for monitoring in food production process. In this work, the gas sensor array was fabricated by dispersing SWNT-COOH in the matrix of different MTPP compounds, namely, MnTPP, FeTPP, ZnTPP, CoTPP and CuTPP. The sensing responses were studied in terms of the changing sensor resistance under the atmosphere of various volatile compounds. The results show that the central metals in tetraphenylporphyrin (TPP) ring play a major role in the selectivity of each gas sensor to each volatile gas. We have investigated the functionality of this handheld e-nose by monitoring the odor of fermented rice during the 5-day fermentation process. Based on the principal component analysis, it was found that the handheld e-nose can track the change of odors generated from the fermentation, in which largest odor change happens on the fifth day. © 2013 IEEE.