| 离子选择性电极非线性测定水中氟离子的含量 |
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| 引用本文： | 王燕. 离子选择性电极非线性测定水中氟离子的含量[J]. 化学分析计量, 2003, 12(3): 19-20 |
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| 作者姓名： | 王燕 |
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| 作者单位： | 山东师范大学化学系,济南,250014 |
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| 摘 要： | 利用氟离子选择性电极测定系列氟离子标准溶液的电极电位(vs.SCE),用测得的电极电位值与氟离子标准溶液的浓度数据进行非线性工作曲线拟舍,可准确测定1×10~(-6)～1×10~(-5)moL/L氟离子溶液的浓度。该法易于实现氟离子溶液的自动连续监测,适于氟离子溶液浓度的在线测量。
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| 关 键 词： | 离子选择性电极 非线性测定 水 氟离子 分析 |
| 修稿时间： | 2003-04-14 |
NONLINEAR DETERMINATION OF THE FLUORINE ION CONTENT IN THE WATER USING ION SELECTIVE ELECTRODE |
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| Wang Yan. NONLINEAR DETERMINATION OF THE FLUORINE ION CONTENT IN THE WATER USING ION SELECTIVE ELECTRODE[J]. Chemical Analysis And Meterage, 2003, 12(3): 19-20 |
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| Authors: | Wang Yan |
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| Abstract: | A new kind of nonlinear analysis method for the determination of fluorine ion with ion selective electrode is de-serihed. By this method, low concentrations, which are out of the linear range of the calibration curve, are accurately determined with resulting accuracy being about 1.7% . The nonlinear equation is fitted. Compared with that of the linear method, the relative error of nonlinear method is much smaller. In addition, the proposed method can be used for the continuous monitoring of the ion content and the on-line computer-controlled automatical analysis. It provides a more adaptive, effective and highly accurate method for laboratory and field analysis. The proposed method has been successfully used in determining the content of F in the water. |
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| Keywords: | nonlinear determination ion selective electrode fluorine ion water |
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