We have located links that may give you full text access.
Ionic liquid-based slab optical waveguide sensor for the detection of ammonia in human breath.
Journal of Colloid and Interface Science 2018 Februrary 16
HYPOTHESIS: A novel slab optical waveguide sensor exploiting an ionic liquid (trihexyl(tetradecyl)phosphonium chloride)-based film can be used to detect gaseous ammonia. Bromothymol blue (BTB) incorporated into the ethyl cellulose-supported ionic liquid film can absorb the evanescent wave generated in the sensor and act as an indicator. The diffusion of gaseous ammonia across the sensing film is thus expected to change the absorbance of bromothymol blue, providing the basis for sensitive ammonia detection.
EXPERIMENTS: The above sensor was exposed to different concentrations of ammonia gas, showing fast and reproducible responses and being superior to previously reported waveguiding-based sensors. Moreover, the fabricated system was used to detect ammonia in the breath of human volunteers.
FINDINGS: Under optimal conditions, gaseous ammonia was accurately detected in the range of 100-1800 ppb, with a detection limit of 69 ppb (3σ/s). The developed sensor was re-usable due to exhibiting reversible gas sorption/desorption dynamics and was successfully applied to the determination of ammonia content in human breath.
EXPERIMENTS: The above sensor was exposed to different concentrations of ammonia gas, showing fast and reproducible responses and being superior to previously reported waveguiding-based sensors. Moreover, the fabricated system was used to detect ammonia in the breath of human volunteers.
FINDINGS: Under optimal conditions, gaseous ammonia was accurately detected in the range of 100-1800 ppb, with a detection limit of 69 ppb (3σ/s). The developed sensor was re-usable due to exhibiting reversible gas sorption/desorption dynamics and was successfully applied to the determination of ammonia content in human breath.
Full text links
Related Resources
Get seemless 1-tap access through your institution/university
For the best experience, use the Read mobile app
All material on this website is protected by copyright, Copyright © 1994-2024 by WebMD LLC.
This website also contains material copyrighted by 3rd parties.
By using this service, you agree to our terms of use and privacy policy.
Your Privacy Choices
You can now claim free CME credits for this literature searchClaim now
Get seemless 1-tap access through your institution/university
For the best experience, use the Read mobile app