Anthony J. Killard
A sensor probe for the continuous in situ monitoring of ammonia leakage in secondary refrigerant systems
Killard, Anthony J.; Subramanian, Raman; Crowley, Karl; Morrin, Aoife; Killard, Anthony
Authors
Raman Subramanian
Karl Crowley
Aoife Morrin
Prof. Tony Killard Tony.Killard@uwe.ac.uk
Research Professor in Biomedical Sciences
Abstract
Ammonia is becoming more widely used in refrigeration systems due to the phasing out of CFCs and HCFCs. However, ammonia is a toxic gas and its leakage from refrigeration systems can lead to human exposure and contamination of refrigerated food stuffs. There is a lack of devices capable of the direct and continuous monitoring of leakage of ammonia into secondary refrigerant systems. Here we demonstrate an ammonia measurement probe for continuous contact monitoring of secondary refrigerants. The probe was based on an ammonia-sensitive film of inkjet printed polyaniline nanoparticles deposited onto an interdigitated electrode array and enclosed behind a polytetrafluoroethylene membrane. When operated impedimetrically, the probe was capable of the detection of ammonia across the industrially relevant range of 0 to 100 ppm from +4 to -15°C in water and brine. Operation of the probe as a simple threshold alarm without the requirement for temperature monitoring or calibration is illustrated. © 2013 The Royal Society of Chemistry.
Citation
Killard, A. J., Subramanian, R., Crowley, K., Morrin, A., & Killard, A. (2013). A sensor probe for the continuous in situ monitoring of ammonia leakage in secondary refrigerant systems. Analytical Methods, 5(1), 134-140. https://doi.org/10.1039/c2ay25688f
Journal Article Type | Article |
---|---|
Publication Date | Jan 7, 2013 |
Deposit Date | Nov 9, 2012 |
Journal | Analytical Methods |
Print ISSN | 1759-9660 |
Electronic ISSN | 1759-9679 |
Publisher | Royal Society of Chemistry |
Peer Reviewed | Peer Reviewed |
Volume | 5 |
Issue | 1 |
Pages | 134-140 |
DOI | https://doi.org/10.1039/c2ay25688f |
Keywords | ammonia, leakage, secondary refrigerant, sensor, polyaniline nanoparticles, probe, impedance |
Public URL | https://uwe-repository.worktribe.com/output/940483 |
Publisher URL | http://dx.doi.org/10.1039/C2AY25688F |
You might also like
Disposable sensors
(2017)
Journal Article
Biomedical Diagnostics Enabled by Integrated Organic and Printed Electronics
(2017)
Journal Article
An electrochemical sensor device for measuring blood ammonia at the point of care
(2017)
Journal Article
Downloadable Citations
About UWE Bristol Research Repository
Administrator e-mail: repository@uwe.ac.uk
This application uses the following open-source libraries:
SheetJS Community Edition
Apache License Version 2.0 (http://www.apache.org/licenses/)
PDF.js
Apache License Version 2.0 (http://www.apache.org/licenses/)
Font Awesome
SIL OFL 1.1 (http://scripts.sil.org/OFL)
MIT License (http://opensource.org/licenses/mit-license.html)
CC BY 3.0 ( http://creativecommons.org/licenses/by/3.0/)
Powered by Worktribe © 2024
Advanced Search