| 王业根.化学通报,2016,79(9):876-879. |
| 基于质子条件式的终点误差精确式 |
| Precise Expressions of End Point Error Based on Proton Balance Equation |
| 投稿时间：2016-01-07 修订日期：2016-03-22 |
| DOI： |
| 中文关键词: 终点误差 质子条件式 精确式 酸碱滴定 |
| 英文关键词:End Point Error Proton Balance Equation Precise Expressions Acid-base Titration |
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| 中文摘要: |
| 容量分析中，滴定终点的误差决定了该分析方法的可靠性。根据质子条件式，可推导出终点误差的精确式。该表达式一是用滴定开始前而不是终点时物质的浓度进行计算；二是用滴定终点时的pH进行计算，不需要计算化学计量点时的pH；三是具有通用性，能有效降低学习与记忆的难度，提高计算结果的准确度。 |
| 英文摘要: |
| In volumetric analysis, error of titration determines the reliability of the analysis method. According to the proton balance equation, the precise expressions of the end point error can be derived. The expressions were calculated using the concentration of the substance at the beginning of the titration rather than the end point. The expressions were calculated with the pH at the end point of titration, and not need to calculate the pH at stoichiometric point. The expressions are universal, which can effectively reduce the difficulty of learning and memory, and improve the accuracy of the calculation results. |
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