| 碘酸钾标准物质的研制 |
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| 引用本文： | 田宝珍,沈迂.碘酸钾标准物质的研制[J].海洋学研究,1997,15(1):26-37. |
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| 作者姓名： | 田宝珍 沈迂 |
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| 作者单位： | 国家海洋局第二海洋研究所，国家标准物质研究中心 |
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| 摘 要： | 本文介绍了碘酸钾标准物质的研制程序，其中包括溶液的配制、均匀性和稳定性检验、分析方法和数据统计处理方法等。并选择了具有高准确度的精密库仑法和自动电位滴定法分析定值，对制备浓度为０．０１ｍｏｌ／ｄｍ３碘酸钾标准物质，其定值的相对不确定度可达０．１％，稳定期在一年以上
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| 关 键 词： | 碘酸钾 标准物质 定值 |
Research and preparation for certified reference material of potassium iodate |
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| Tian Baozhen,Yang Zhanxiong.Research and preparation for certified reference material of potassium iodate[J].Journal of Marine Sciences,1997,15(1):26-37. |
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| Authors: | Tian Baozhen Yang Zhanxiong |
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| Abstract: | In the paper, the research and preparation programme for certified reference material of potassium iodate for determining dissolved oxygen in the sea water were described in detail, including preparation of the solution, examination of homogeneity and stability, analytical method and statistical method of data treatment Certified value was obtained by the high accuracy Precise Coulomb method and the Automatic Potential Titration method The relative uncertainty of certified value for 0 01 mol/dm 3 potassium iodate reaches 0 1%, and its stability term is over one year |
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| Keywords: | potassium iodate certified reference material (CRM) certified value |
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