方法对比
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| 电位滴定法× | 库仑分析法× | |
|---|---|---|
| 领域 | 分析化学 | 分析化学 |
| 方法族 | Process / pipeline | Process / pipeline |
| 起源年份≠ | 1909 | 1945 |
| 提出者≠ | Soren Sorensen | James Lingane |
| 类型≠ | titration method | electrochemical titration |
| 开创性文献≠ | Skoog, D. A., West, D. M., Holler, F. J., & Crouch, S. R. (2014). Fundamentals of Analytical Chemistry (9th ed.). Cengage Learning. ISBN: 978-1133170960 | Lingane, J. J. (1974). Electroanalytical Chemistry (2nd ed.). Interscience Publishers. ISBN: 978-0486409023 |
| 别名≠ | potentiometry, electrochemical titration | coulometric titration, electrochemical coulometry, amperes titration |
| 相关 | 5 | 5 |
| 摘要≠ | Potentiometric titration is an electrochemical method of analysis that measures the potential difference between a reference electrode and an indicator electrode as a titrant is gradually added to a solution. Developed in the early 20th century, it allows precise determination of the concentration of analytes without requiring visual endpoint indicators. This method is fundamental in analytical chemistry for determining acids, bases, redox species, and metal ions. | Coulometry is an electrochemical analytical method that determines the concentration of an analyte by measuring the total electric charge (in coulombs) required to oxidize or reduce the analyte completely at an electrode. Developed by James J. Lingane in the 1940s, coulometry is highly accurate because it is based on fundamental constants (Faraday's law) and does not require external standards or calibration curves. This method is particularly valuable for trace analysis, water determination, and analysis of reactive species. |
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