维埃克斯纯度测量不确定度评定与分析
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- 英文论文题名：Uncertainty Evaluation Procedure for Purity Determination of VX
- 论文作者：唐慧 ; 李善茂
- 英文论文作者：Hui Tang ; Shanmao Li ; Institut of Chemical Defense ; Research Institut of Chemical Defense
- 年：2016
- 作者机构：防化学院;防化研究院;
- 论文关键词：维埃克斯 ; 氧化还原滴定 ; 不确定度 ; 纯度
- 英文论文关键词：VX ; chemical warfare agents ; uncertainty ; oxidation-reduction titration
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第三十四分会：公共安全化学
- 语种：中文
- 分类号：O655.2
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第三十四分会 ; 公共安全化学
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：315k
- 原文格式：D
- 会议级别：全国
摘要
VX纯度测定采用氧化还原滴定法,实验分两步进行:一是测定游离硫醇,二是测定总硫醇含量测定,依据JJF1059-2013建立了VX纯度测量的数学模型和合成不确定度。分析了方法中的测量不确定度来源包括:碘标准溶液浓度、碘标准溶液体积、加入VX质量、VX分子量及其修约、实验重复性和VX纯度数值修约等六个方面因素。以VX含量为71.08%的样品为例,对样品中维埃克斯(VX)的含量进行不确定度评价,建立评价氧化还原滴定法测定VX含量不确定度的数学模型,对测定中的各影响因素进行考察。结果表明,VX的扩展不确定度为0.34%,含量测定结果为(71.08±0.34)%。建立的计算方法实用、可靠,可以用于氧化还原法测定V类毒剂含量的不确定度评定。将科学的测量不确定度引入VX纯度测定过程中,可以极大地统一理解和说明测量结果,对于客观评价检测结果,尤其是对后续VX气体发生浓度检测结果的判断具有重要意义。
Uncertainty evaluation procedure for purity determination of VX. According to the JJF 1059-2013, the mathematical model and the combined standard uncertainty of purity determination of VX were set up. By analyzing the influencing factors of the uncertainty on the experimental procedure, the uncertainty components were determined, the standard uncertainty was combined. The results show that the repeatability and volume of I2 were the most important factors. The method can be applied to the uncertainty evaluation for the purity determination of VX by oxido-reduction titration, which can be a guide for improving the accuracy of the experiment.
Uncertainty evaluation procedure for purity determination of VX. According to the JJF 1059-2013, the mathematical model and the combined standard uncertainty of purity determination of VX were set up. By analyzing the influencing factors of the uncertainty on the experimental procedure, the uncertainty components were determined, the standard uncertainty was combined. The results show that the repeatability and volume of I2 were the most important factors. The method can be applied to the uncertainty evaluation for the purity determination of VX by oxido-reduction titration, which can be a guide for improving the accuracy of the experiment.
引文
[1]国家质量监督检验检疫总局.JJF1059.1-2012.测量不确定度评定与表示[S].北京:中国标准出版社,2013.
[2]梁开伦,焦天恕,李树斌,等.分析实验数据处理中的测量不确定度[J].分析测试技术与仪器,2005,11(2):149-152.
[3]国家质量监督检验检疫总局.JJF1135-2005化学分析测量不确定度评定[S].北京:中国计量出版社,2005.
[2]梁开伦,焦天恕,李树斌,等.分析实验数据处理中的测量不确定度[J].分析测试技术与仪器,2005,11(2):149-152.
[3]国家质量监督检验检疫总局.JJF1135-2005化学分析测量不确定度评定[S].北京:中国计量出版社,2005.