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Adsorption Response of Semiconductor Gas Sensors with the Use of a Portable Flow-Through Monitor
Citation
Dimitrakopoulos, LT and Alexander, PW and Hibbert, DB, Adsorption Response of Semiconductor Gas Sensors with the Use of a Portable Flow-Through Monitor, Field Analytical Chemistry and Technology, 1, (6) pp. 357-366. ISSN 1086-900X (1997) [Refereed Article]
DOI: doi:10.1002/(SICI)1520-6521(199712)1:6<357::AID-FACT5>3.3.CO;2-9
Abstract
The response mechanism of ethanol for the TGS812 and TGS824 tin-oxide semiconductor gas sensors in a portable flow-through arrangement follows a linearized Langmuir model with correlation coefficients of 0.9992 and 0.9978, respectively. The portable battery-powered gas monitor is small in size (20 x 11 x 6 cm), lightweight (1.1 kg), requires low power (3.6 W), which is sufficient to operate the system for approximately 4 h, and is connected to a notebook computer for real-time display of data and data acquisition. Analysis of commercial beer and wine samples showed a high correlation (r2 = 0.9996) with gas chromatography results. Therefore, the Langmuir model used with this portable gas monitor offers a linear calibration method for quan-titative analysis of ethanol. © 1997 by John Wiley & Sons, Inc.
Item Details
| Item Type: | Refereed Article |
|---|---|
| Research Division: | Chemical Sciences |
| Research Group: | Analytical Chemistry |
| Research Field: | Instrumental Methods (excl. Immunological and Bioassay Methods) |
| Objective Division: | Expanding Knowledge |
| Objective Group: | Expanding Knowledge |
| Objective Field: | Expanding Knowledge in the Chemical Sciences |
| Author: | Dimitrakopoulos, LT (Mrs Lucy Tina Dimitrakopoulos) |
| Author: | Alexander, PW (Professor Peter Alexander) |
| ID Code: | 12295 |
| Year Published: | 1997 |
| Web of Science® Times Cited: | 2 |
| Deposited By: | Applied Science |
| Deposited On: | 1997-08-01 |
| Last Modified: | 2011-08-15 |
| Downloads: | 0 |
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