TY - GEN
T1 - E-nose based on metallo-tetraphenylporphyrin/ SWNT-COOH for alcohol detection
AU - Siyang, Satetha
AU - Seesaard, Thara
AU - Lorwongtragool, Panida
AU - Kerdcharoen, Teerakiat
PY - 2013
Y1 - 2013
N2 - 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.
AB - 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.
KW - Handheld electronic nose
KW - MTPP/SWNT-COOH
KW - alcohol detection
KW - fermented rice
KW - metallo-tetraphenylporphyrin
UR - https://www.scopus.com/pages/publications/84890457056
U2 - 10.1109/EDSSC.2013.6628073
DO - 10.1109/EDSSC.2013.6628073
M3 - Conference contribution
AN - SCOPUS:84890457056
SN - 9781467325233
T3 - 2013 IEEE International Conference of Electron Devices and Solid-State Circuits, EDSSC 2013
BT - 2013 IEEE International Conference of Electron Devices and Solid-State Circuits, EDSSC 2013
T2 - 2013 IEEE International Conference of Electron Devices and Solid-State Circuits, EDSSC 2013
Y2 - 3 June 2013 through 5 June 2013
ER -