| 氧弹燃烧-离子选择性电极法测定氟 |
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| 引用本文： | 粟智.氧弹燃烧-离子选择性电极法测定氟[J].理化检验(化学分册),2005,41(6):383-384,387. |
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| 作者姓名： | 粟智 |
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| 作者单位： | 新疆师范大学生命与环境科学学院,乌鲁木齐,830054 |
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| 摘 要： | 介绍了一种测定试样中氟含量的快速方法。首先利用氧弹燃烧技术对样品进行预处理，将氟转化为氟化氢，用碱液吸收燃烧产物，吸收液加入TISAB消除Al^3 、Fe^3 等离子干扰，调节溶液pH在5～8后进行定容，然后用氟离子选择性电极用标准加入法测定溶液的电位，从而测得样品中氟的含量。对香烟、头发和饲料进行分析，结果表明该法简单、快速、结果可靠，可用于试样中氟的快速测定
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| 关 键 词： | 氧弹 离子选择性电极 氟 |
| 文章编号： | 1001-4020(2005)06-0383-02 |
DETERMINATION OF FLUORIDE BY COMBUSTION WITH OXYGEN BOMB AND ION SELECTIVE ELECTRODE METHOD |
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| SU Zhi.DETERMINATION OF FLUORIDE BY COMBUSTION WITH OXYGEN BOMB AND ION SELECTIVE ELECTRODE METHOD[J].Physical Testing and Chemical Analysis Part B:Chemical Analgsis,2005,41(6):383-384,387. |
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| Authors: | SU Zhi |
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| Abstract: | The paper introduces a method for determining the fluoride with oxygen bomb and combustion fluoride-ion selective electrode. Firstly ,the sample was burned in the oxygen bomb with high pressure and pure oxygen, then absorbing the ash with alkali solution and using the TISAB for eliminating interference of Al~(3+)Fe~(3+). Fluoride-ion selective electrode was used for determining the content of fluoride in samples in the range of pH in 5~8. Samples such as cigarette ,human hair and fodder were analyzed and the was proved to be rapid, simple and reliable for its accuracy. |
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| Keywords: | Oxygen bomb Ion selective electrode Fluoride |
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