| 三次样条插值离子选择电极测定人发中的氟和碘 |
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| 引用本文： | 张凤君 张野. 三次样条插值离子选择电极测定人发中的氟和碘[J]. 分析测试学报, 1994, 13(3): 82-85 |
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| 作者姓名： | 张凤君 张野 |
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| 作者单位： | 长春地质学院应化系 |
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| 摘 要： | 对同时测定同一底液中的氟和碘进行了探讨，找到了合适的１．０ｍｏｌ／Ｌ柠檬酸钠－１．０ｍｏｌ／Ｌ ＮａＮＯ３ ｐＨ＝５．５的缓冲体系。采用三次样条插值程序可很好地解决曲线的弯曲问题，改善了含氮和碘量低分析结果的准确度、精度官及检测下限。
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| 关 键 词： | 三次样条插值 毛发 氟 碘 |
Determination of Fluorine and Iodine in Human Hair by lon-Selective Electrodes with Cubic Spline Interpolation |
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| Zhang Fengjun, Zhang Ye, Zhao Shujie. Determination of Fluorine and Iodine in Human Hair by lon-Selective Electrodes with Cubic Spline Interpolation[J]. Journal of Instrumental Analysis, 1994, 13(3): 82-85 |
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| Authors: | Zhang Fengjun Zhang Ye Zhao Shujie |
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| Abstract: | Determination of flurine and iodine in a Single solution of human hair samples with ionselective electrodes has been investigated.It was found that a buffer system of 1.0 mol/L sodium citrate-1.0 mol/L sodium nitrate at pH 5.5 was the best for this method. At lower concentrations, the accuracy, precision and limit of detection of the method can be much improved by using a program of cubic spline interpolation for the non-linear portion of the calibration curve. |
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| Keywords: | Cubic spline interpolation Ion-selective electrodes Fluorine Iodine Human hair. |
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