Personal ammonia sensor for industrial environments.
The realisation of an opto-chemical ammonia sensor suitable for personal monitoring tasks is described, comprising a cyanine dye immobilised in a microporous glass thin film. The fabrication of sensor platforms incorporating embossed grating couplers provides a compact optical design with effective waveguiding characteristics, resulting in reversible ammonia sensitivity in the 5-100 ppm range in under 2 min. Cross-sensitivity of sensor response with water and other potential interferents is considered.
Malins
C
C
Department of Instrumentation and Analytical Science, UMIST, Manchester, UK M60 1QD. chris.malins@umist.ac.uk
Doyle
A
A
MacCraith
B D
BD
Kvasnik
F
F
Landl
M
M
Simon
P
P
Kalvoda
L
L
Lukas
R
R
Pufler
K
K
Babusík
I
I
D016902:Air Pollution, Indoor / Q000032:analysis*; D000641:Ammonia / Q000032:analysis*; D004784:Environmental Monitoring / Q000295:instrumentation*; D004867:Equipment Design; D006801:Humans; D016273:Occupational Exposure; D055095:Optics and Photonics; D012680:Sensitivity and Specificity
D000641:Ammonia