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A New Nitric Oxide Gas Sensor Based on Reticulated Vitreous Carbon/Nafion and Its Applications
Ist Teil von
Electroanalysis (New York, N.Y.), 2004-10, Vol.16 (20), p.1723-1729
Ort / Verlag
Weinheim: WILEY-VCH Verlag
Erscheinungsjahr
2004
Link zum Volltext
Quelle
Wiley Online Library All Journals
Beschreibungen/Notizen
Reticulated vitreous carbon (RVC), and Nafion membrane are used to fabricate a composition electrode to measure nitric oxide (NO) concentration amperometrically in the gas phase. Limit of detection was found to be 6 ppb at an applied voltage of 0.66 V (vs. mercury sulfate reference electrode) with average response time of less than 30 seconds. The response of the sensor was linearly dependent on the concentration over the whole tested range from 19 ppb‐50 ppm of NO. Simplicity in electrode fabrication and consistent performance between individual sensors make RVC and Nafion attractive materials for detecting very low levels of nitric oxide gas in routine analysis.