| 固态pH 探测电极的制备及其性能表征 |
| |
| 引用本文： | 叶瑛,邬黛黛,黄霞,陈鹰,陈慧明,杨灿军,陈宁华.固态pH 探测电极的制备及其性能表征[J].传感技术学报,2003,16(4):487-490. |
| |
| 作者姓名： | 叶瑛 邬黛黛 黄霞 陈鹰 陈慧明 杨灿军 陈宁华 |
| |
| 作者单位： | 1. 浙江大学地球科学系,杭州,310027
2. 浙江大学流体传动及控制国家重点实验室,杭州,310027 |
| |
| 摘 要： | 我们采用熔融碳酸锂(LiCO3)氧化法制备了固态Ir／IrO2 pH电极，同时制备了改进型固态Ag／AgCl参比电极，并对它们的性能进行了表征。实验结果显示，在pH=0-14的溶液中，Ir／IrO2电极与参比电极电位差与pH值呈现良好的线性关系，直线斜率为-62．429mV／pH，截距为607．97mV，相关系数R2=0．993。温度对新型pH传感器响应信号的影响符合Nernst方程，易于进行温度校正。盐度对电信号强度的影响是线性的，在介质盐度已知，或向步测定介质盐度的前提下，可从响应电信号强度及盐度确定待测介质的pH值。
|
| 关 键 词： | 固态Ir／IrO2电极 性能表征 铱／氧化铱 制备工艺 Ag／AgCl参比电极 pH传感器 |
| 文章编号： | 1004-1699(2003)04-0487-04 |
| 修稿时间： | 2003年5月29日 |
Preparation and Performance Characterization of Novel Solid pH Sensing Electrodes |
| |
| YE Ying,WU Daidai,HUANG Xi,CHEN Ying,CHEN Huiming,Yang Canjun,Chen Ninghua.Preparation and Performance Characterization of Novel Solid pH Sensing Electrodes[J].Journal of Transduction Technology,2003,16(4):487-490. |
| |
| Authors: | YE Ying WU Daidai HUANG Xi CHEN Ying CHEN Huiming Yang Canjun Chen Ninghua |
| |
| Affiliation: | YE Ying 1,WU Dai-dai 1,HUANG Xia 1,CHEN Ying 2,CHEN Hui-ming 2,Yang Can-jun 2,Chen Ning-hua 11. Department of Earth Sciences,zhejiang University,Hangzhou 310027,China,2. The State Key Lab. of Fluid Power Transmission & Control. Zhejiang University,Hangzhou 310027,China |
| |
| Abstract: | Ir/IrO 2 pH electrode is prepared with oxidation method in LiCO 3 melt and paired with a novel Ag/AgCl reference. Characterization results show that responded potential difference between the work and reference electrodes is in linear relation with pH value in the full range of pH, with a slope of-62.429 mV/pH, intercept of 607.97 mV, correlation coefficient R 2=0.993. Impact of temperature on the response signal of the pH sensor is in accord with Nernst equation, easy to be corrected. Salinity's relation with the signal is also linear one, so that pH value can be worked out from response potential in the medium with known salinity, or in the condition that the salinity is measured simultaneously. |
| |
| Keywords: | Ir/IrO 2 electrode novel Ag/AgCl reference electrode performance characterization |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《传感技术学报》浏览原始摘要信息 |
|
点击此处可从《传感技术学报》下载全文 |
|
