方法对比
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| 标准加标法× | 电位滴定法× | |
|---|---|---|
| 领域 | 分析化学 | 分析化学 |
| 方法族 | Process / pipeline | Process / pipeline |
| 起源年份≠ | 1920s | 1909 |
| 提出者≠ | Analytical chemistry practice | Soren Sorensen |
| 类型≠ | matrix-compensating calibration technique | titration method |
| 开创性文献≠ | Harris, D. C. (2010). Quantitative Chemical Analysis (8th ed.). Freeman. ISBN: 978-1429218153 | Skoog, D. A., West, D. M., Holler, F. J., & Crouch, S. R. (2014). Fundamentals of Analytical Chemistry (9th ed.). Cengage Learning. ISBN: 978-1133170960 |
| 别名≠ | spiking method, known-addition method, matrix matching | potentiometry, electrochemical titration |
| 相关 | 5 | 5 |
| 摘要≠ | The standard addition method is a quantitative analytical technique that determines the concentration of an unknown analyte by measuring the response before and after adding a known quantity of the analyte (a standard) to the sample itself. This approach compensates for matrix effects and interference from other sample components, making it invaluable when analyzing complex matrices (biological fluids, environmental samples, geological materials) where the sample composition profoundly affects the measured signal. The standard addition method is widely recognized in analytical chemistry as a primary quantification strategy when external calibration is compromised by matrix variability. | 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. |
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