Electron Science Research Institute, Edith Cowan University, Joondalup, WA 6027, Australia.
School of Science, Edith Cowan University, Joondalup, WA 6027, Australia.
Talanta. 2018 Apr 1;180:277-281. doi: 10.1016/j.talanta.2017.12.070. Epub 2017 Dec 22.
A new reproducible solid-state metal-oxide pH sensor for beverage quality monitoring is developed and characterised. The working electrode of the developed pH sensor is based on the use of laser-etched sputter-deposited RuO on AlO substrate, modified with thin layers of sputter-deposited TaO and drop-cast Nafion for minimisation of redox interference. The reference electrode is manufactured by further modifying a working electrode with a porous polyvinyl butyral layer loaded with fumed SiO. The developed pH sensor shows excellent performance when applied to a selection of beverage samples, with a measured accuracy within 0.08 pH of a commercial glass pH sensor.
一种用于饮料质量监测的新型可重复使用固态金属氧化物 pH 传感器已经开发并进行了特性描述。所开发的 pH 传感器的工作电极基于使用激光刻蚀的溅射沉积 RuO 在 AlO 基底上，通过溅射沉积 TaO 和滴铸 Nafion 的薄层进行修饰，以最小化氧化还原干扰。参考电极是通过进一步用多孔聚丁二烯层修饰工作电极来制造的，该层负载有气相法二氧化硅。所开发的 pH 传感器在应用于一系列饮料样品时表现出优异的性能，其测量精度与商业玻璃 pH 传感器相差 0.08 pH 以内。
