| 涂丝钙离子选择电极的研究 |
| |
| 引用本文： | 李习纯,曾斌礼,许喜林,宁爱萍.涂丝钙离子选择电极的研究[J].中南大学学报(自然科学版),1987(1). |
| |
| 作者姓名： | 李习纯 曾斌礼 许喜林 宁爱萍 |
| |
| 作者单位： | 中南矿冶学院化学系，中南矿冶学院化学系，中南矿冶学院化学系，中南矿冶学院化学系 |
| |
| 摘 要： | 本文介绍了涂丝钙离子选择电极的试制,找到了制备电极的最佳条件,全面测试了电极各项分析性能及温度效应、活化能等参数。结果表明,铜基涂丝钙离子选择电极线性范围为10~(-1) -2×10~(-5) mol/LCa~(2+),检测极限达8×10~(-6) mol/L,斜率为30±2mV,适用 pH 范围为4. 5-11. 0,响应时间少于15s,内阻低,选择性和稳定性好,使用寿命一般为三个月左右,并成功的用于水质分析及钙离子的有关络合物稳定常数的测定。
|
| 关 键 词： | 离子选择电极 钙离子 制造 性能 |
A STUDY ON COATED WIRE CALCIUM ION-SELECTIVE ELECTRODE |
| |
| Li Xichun Zeng Binli Xu Xilin Ning Aipin.A STUDY ON COATED WIRE CALCIUM ION-SELECTIVE ELECTRODE[J].Journal of Central South University:Science and Technology,1987(1). |
| |
| Authors: | Li Xichun Zeng Binli Xu Xilin Ning Aipin |
| |
| Institution: | Department of Chemistry |
| |
| Abstract: | The authors have chosen the optimum conditions for preparing coated wire calcium ion-selective electrodes,and determined various analytical performances of the electrodes as well as temperature effect,activation energy and so on.Experiment shows that for coated wire calcium ion-selective electrodes with copper matrix,there is a linear dependence of the electrode potential on logarithm calcium ion activities over a range of 10`(-1) -2x10~(-5) mol/L,the limit of detection is 8x10~(-6) mol/L,the electrode potential remains constant over pH range 4. 5-11. 0.This kind of electrode has been successfully applied to water quality analysis and determination of stability constants of the related complex compounds of calcium ions. |
| |
| Keywords: | ion-selective electrode calcium ion manufacturing properties |
| 本文献已被 CNKI 等数据库收录！ |
|
