Development of Ammonia Gas Sensor Using Optimized Organometallic Reagent
Joint Authors
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-03-27
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Reliable, continuous, and spatially distributed monitoring of dangerous or irritating chemical substances belongs to standard functions of contemporary industrial and public security systems.
Fiber-optic-based detection provides feasible platform to fulfill such aims.
This paper deals with characterization of ammonia sensing elements based on multimode polysiloxane-clad silica-core optical fibers sensitized with 5-(4′-dioctylamino phenylimino) quinoline-8-1 cobalt bromide complex reagent immobilized into the cross-linked polymer matrix from a proper mixture of organic solvents and a radical scavenger contributing to the desired long-term stability of optical properties.
The applied sensing mechanism combines optical detection principle with chemical reaction of the reagent and ammonia resulting in changes in the visible near-infrared optical absorption spectrum of the cladding layer, influencing via evanescent optical field interactions the spectral distribution of the guided light intensity.
Reaction kinetics of short fiber sections exposed to ammonia/nitrogen mixture of various ammonia concentrations is tested and evaluated.
The obtained sensitivity, limit of detection, and forward response time of the prepared sensors amount to 1.52 ⁎ 10 - 5 ppm−1, 31 ppm, and 25 s, respectively.
The obtained results are promising for fabrication of distributed fiber-optic sensors applicable to detection and location of ammonia gas leaks in industrial as well as general public premises.
American Psychological Association (APA)
Aubrecht, J.& Kalvoda, L.. 2016. Development of Ammonia Gas Sensor Using Optimized Organometallic Reagent. Journal of Sensors،Vol. 2016, no. 2016, pp.1-8.
https://search.emarefa.net/detail/BIM-1110649
Modern Language Association (MLA)
Aubrecht, J.& Kalvoda, L.. Development of Ammonia Gas Sensor Using Optimized Organometallic Reagent. Journal of Sensors No. 2016 (2016), pp.1-8.
https://search.emarefa.net/detail/BIM-1110649
American Medical Association (AMA)
Aubrecht, J.& Kalvoda, L.. Development of Ammonia Gas Sensor Using Optimized Organometallic Reagent. Journal of Sensors. 2016. Vol. 2016, no. 2016, pp.1-8.
https://search.emarefa.net/detail/BIM-1110649
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1110649