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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/123805
Highly Specific and Wide Range NO2 sensor with color readout
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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.
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FÀBREGA GALLEGO, Cristian, et al. Highly Specific and Wide Range NO2 sensor with color readout. ACS Sensors. 2017. Vol. 2, num. 11, pags. 1612-1618. ISSN 2379-3694. [consulted: 9 of August of 2026]. Available at: https://hdl.handle.net/2445/123805