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首页> 外文期刊>International Journal of Electrochemical Science >Development and Performance of an All-Solid-Stated pH Sensor Based on Modified Membranes
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Development and Performance of an All-Solid-Stated pH Sensor Based on Modified Membranes

机译：基于修饰膜的全固态pH传感器的开发与性能

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In this study, we developed an all-solid-stated planar pH sensor with the help of magnetron sputtering technology and printed circuit board (PCB). The developed pH sensor consists of a working electrode, which employed antimony sensitive thin film and Nafion modification membrane, and an Ag/AgCl reference electrode, which was modified by graphene-chitosan membrane. Then, the performance of the pH sensor was investigated. The results demonstrate that the developed pH sensor has excellent features, including high sensitivity (54.5 mV/pH in the pH range from 4 to 9), short response time (about 20 s), and stability (less than 2 mV in 10 min period, and less than 2 mV/pH in a month.). Further, the developed pH sensor was applied in some common samples, such as coke, vinegar, mineral water, clay, peat, and vermiculite, and the measuring absolute error was less than 0.60 units, and the measuring relative error was about 10%. The pH sensor is low cost, high performance, and easy fabrication, is promising to popularize in laboratory and industrial.
机译：在这项研究中，我们借助磁控溅射技术和印刷电路板（PCB）开发了全固态平面pH传感器。研发的pH传感器包括一个工作电极和一个Ag / AgCl参比电极，该工作电极采用了锑敏感薄膜和Nafion修饰膜，而参比电极则被石墨烯-壳聚糖膜修饰。然后，研究了pH传感器的性能。结果表明，开发的pH传感器具有出色的功能，包括高灵敏度（pH范围为4至9时为54.5 mV / pH），响应时间短（约20 s）和稳定性（10分钟内小于2 mV） ，并且每月不到2 mV / pH。）。此外，将发达的pH传感器应用于焦炭，醋，矿泉水，粘土，泥煤和ver石等一些常见样品中，测量绝对误差小于0.60单位，测量相对误差约为10％。 pH传感器低成本，高性能，易于制造，有望在实验室和工业中普及。

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