Shigemitsu T, Matsumoto G
Biotelemetry. 1977;4(3):151-64.
This report concerns the investigation of the sensitivity, temperature dependence, accuracy, and the standard electrode potential EO of an antimony thin film pH electrode which was prepared with electron beam evaporation techniques. The air-formed oxide film on antimony thin film electrodes has been proved by both the cathodic reduction method and electron spectroscopy for chemical analysis (ESCA). The antimony thin film electrode responded rapidly to pH changes and its sensitivity was slightly changed depending on the buffer composition. The accuracy of this electrode was compared with that of the glass electrode. Temperature had some influence on the function of this electrode. The standard electrode potential of this electrode was discussed together with that of other forms of antimony electrodes. The structure and thickness of the surface oxide on antimony thin film electrodes was confirmed by cathodic reduction and ESCA. It was clear that the surface oxide governs the electrode reactions. Possible applications of the antimony thin film electrode are discussed stating some limitations in the use.
本报告涉及对采用电子束蒸发技术制备的锑薄膜pH电极的灵敏度、温度依赖性、准确性及标准电极电位EO的研究。通过阴极还原法和化学分析电子能谱（ESCA）已证实锑薄膜电极上形成的空气氧化膜。锑薄膜电极对pH变化响应迅速，其灵敏度会因缓冲液组成略有变化。将该电极的准确性与玻璃电极的准确性进行了比较。温度对该电极的功能有一定影响。讨论了该电极的标准电极电位以及其他形式锑电极的标准电极电位。通过阴极还原和ESCA确定了锑薄膜电极表面氧化物的结构和厚度。很明显，表面氧化物控制着电极反应。讨论了锑薄膜电极的可能应用，并指出了使用中的一些局限性。
