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A novel, low-cost, portable PID sensor for the detection of volatile organic compounds

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Agbroko, Samuel O. and Covington, James A. (2018) A novel, low-cost, portable PID sensor for the detection of volatile organic compounds. Sensors and Actuators B: Chemical, 275 . pp. 10-15. doi:10.1016/j.snb.2018.07.173

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Official URL: http://dx.doi.org/10.1016/j.snb.2018.07.173

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Abstract

We report on the design, fabrication and verification of a portable, low cost PID. Unlike commercial PID sensors, ours provides two outputs. One output correlates to the total chemical components and a second that provides some level of compositional information. We believe that this makes this sensor system more useful than a standard commercial PID, at a similar cost point. Our PID sensor was tested with gas concentrations down to 2 ppm isobutylene. The results presented indicate that the limit of detection will be well below 1 ppm. Compositional analysis was also carried out and the results presented shows our sensor can successfully discriminate between low concentrations of 2-hexanone, isobutylene, propanol, 2-pentanone, 2-octanone and 2-heptanone.

Item Type: Journal Article
Subjects: Q Science > QC Physics
Divisions: Faculty of Science > Engineering
Library of Congress Subject Headings (LCSH): Photoionization, Volatile organic compounds
Journal or Publication Title: Sensors and Actuators B: Chemical
Publisher: Elsevier Science SA
ISSN: 0925-4005
Official Date: 1 December 2018
Dates:
DateEvent
1 December 2018Published
7 August 2018Available
31 July 2018Accepted
Volume: 275
Page Range: pp. 10-15
DOI: 10.1016/j.snb.2018.07.173
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access

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