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Highly Specific and Wide Range NO 2 Sensor with Color Readout
- Source :
- Recercat. Dipósit de la Recerca de Catalunya, instname, ACS Sensors, Dipòsit Digital de la UB, Universidad de Barcelona
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Abstract
- We present a simple and inexpensive method to implement a Griess-Saltzman-type reaction that combines the advantages of the liquid phase method (high specificity and fast response time) with the benefits of a solid implementation (easy to handle). We demonstrate that the measurements can be carried out using conventional RGB sensors; circumventing all the limitations around the measurement of the samples with spectrometers. We also present a method to optimize the measurement protocol and target a specific range of NO2 concentrations. We demonstrate that it is possible to measure the concentration of NO2 from 50 ppb to 300 ppm with high specificity and without modifying the Griess-Saltzman reagent.
- Subjects :
- Analytical chemistry
Liquid phase
Medi ambient
Bioengineering
02 engineering and technology
01 natural sciences
Range (statistics)
Colorimetry
Instrumentation
Natural environment
Fluid Flow and Transfer Processes
Colorimetria
Spectrometer
business.industry
Chemistry
Process Chemistry and Technology
010401 analytical chemistry
Response time
021001 nanoscience & nanotechnology
0104 chemical sciences
Reagent
RGB color model
0210 nano-technology
business
Computer hardware
Subjects
Details
- Language :
- English
- ISSN :
- 23793694
- Volume :
- 2
- Issue :
- 11
- Database :
- OpenAIRE
- Journal :
- ACS Sensors
- Accession number :
- edsair.doi.dedup.....56dd3bc53fc0eb1a1a0bc73be499366d
- Full Text :
- https://doi.org/10.1021/acssensors.7b00463