| NTO纯度标准物质定值研究 |
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| 引用本文： | 徐敏,陈智群,王民昌,张皋,温小燕,贾林,梁忆. NTO纯度标准物质定值研究[J]. 化学分析计量, 2011, 20(3): 4-6 |
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| 作者姓名： | 徐敏 陈智群 王民昌 张皋 温小燕 贾林 梁忆 |
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| 作者单位： | 西安近代化学研究所,西安,710065 |
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| 摘 要： | 为了对纯度标准物质3-硝基-1,2,4-三唑-5-酮(NTO)定值,获得其纯度值和不确定度,采用"杂质扣除法"对标准物质进行定值,用化学分析法对定值结果进行验证.通过对定值过程的A、B类不确定度评定,获得定值结果的不确定度.NTO纯度标准物质的纯度值为99.57%,扩展不确定度U=0.02%(k=2).
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| 关 键 词： | 化学计量 NTO 标准物质 定值 不确定度 |
QUANTIFICATION OF PURITY REFERENCE MATERIAL NTO |
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| Xu Min,Chen Zhiqun,Wang Minchang,Zhang Gao,Wen Xiaoyan,Jia Lin,Liang Yi. QUANTIFICATION OF PURITY REFERENCE MATERIAL NTO[J]. Chemical Analysis And Meterage, 2011, 20(3): 4-6 |
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| Authors: | Xu Min Chen Zhiqun Wang Minchang Zhang Gao Wen Xiaoyan Jia Lin Liang Yi |
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| Affiliation: | Xu Min,Chen Zhiqun,Wang Minchang,Zhang Gao,Wen Xiaoyan,Jia Lin,Liang Yi (Xi'an Modern Chemistry Research Institute,Xi'an 710065,China) |
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| Abstract: | The purity reference material 3-nitro-1,2,4-triazol-5-one(NTO) was analyzed by the method of impurity deduction in order to acquire the purity and uncertainty.The purity was validated by potentiometric titration.The uncertainty of certification was evaluated.The purity and expanded uncertainty of NTO were 99.57% and 0.02%(k=2) respectively. |
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| Keywords: | chemical meterage NTO reference material quantification uncertainty |
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