RuO2 pH Sensor with Super-Glue-Inspired Reference Electrode
AbstractA pH-sensitive RuO2 electrode coated in a commercial cyanoacrylate adhesive typically exhibits very low pH sensitivity, and could be paired with a RuO2 working electrode as a differential type pH sensor. However, such sensors display poor performance in real sample matrices. A pH sensor employing a RuO2 pH-sensitive working electrode and a SiO2-PVB junction-modified RuO2 reference electrode is developed as an alternative high-performance solution. This sensor exhibits a performance similar to that of a commercial glass pH sensor in some common sample matrices, particularly, an excellent pH sensitivity of 55.7 mV/pH, a hysteresis as low as 2.7 mV, and a drift below 2.2 mV/h. The developed sensor structure opens the way towards the development of a simple, cost effective, and robust pH sensor for pH analysis in various sample matrices. View Full-Text
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Lonsdale, W.; Wajrak, M.; Alameh, K. RuO2 pH Sensor with Super-Glue-Inspired Reference Electrode. Sensors 2017, 17, 2036.
Lonsdale W, Wajrak M, Alameh K. RuO2 pH Sensor with Super-Glue-Inspired Reference Electrode. Sensors. 2017; 17(9):2036.Chicago/Turabian Style
Lonsdale, Wade; Wajrak, Magdalena; Alameh, Kamal. 2017. "RuO2 pH Sensor with Super-Glue-Inspired Reference Electrode." Sensors 17, no. 9: 2036.
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