| 锑元素溶液标准物质的研制 |
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| 引用本文： | 孙倩芸,吕邓义,高捷,张森,王云,郭波.锑元素溶液标准物质的研制[J].化学试剂,2022,44(3):462-467. |
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| 作者姓名： | 孙倩芸 吕邓义 高捷 张森 王云 郭波 |
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| 作者单位： | 山东省计量科学研究院,山东 济南 250014,山东省食品药品检验研究院,山东 济南 250101 |
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| 基金项目： | 山东省计量科学研究院科技项目[sdimkj202156]:水质多参数检测量值溯源关键技术研究与应用。 |
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| 摘 要： | 为满足锑元素检测需求,研制了锑元素溶液标准物质.该标准物质以高纯锑和MOS级硝酸为原料,在对高纯金属纯度定值的基础上,采用重量-容量法进行配制和定值.高纯锑采用杂质扣除法测定其纯度.采用ICP-MS半定量方法对杂质进行定性分析,通过电感耦合等离子体质谱法(ICP-MS)对金属杂质进行准确测定,通过惰性气体熔融-红外吸收...
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| 关 键 词： | 锑标准物质 金属纯度 杂质扣除法 电感耦合等离子体质谱法 不确定度 |
Development of Standard Reference Material for Antimony Solution |
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| SUN Qian-yun,LV Deng-yi,GAO Jie,ZHANG Sen,WANG Yun,GUO Bo.Development of Standard Reference Material for Antimony Solution[J].Chemical Reagents,2022,44(3):462-467. |
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| Authors: | SUN Qian-yun LV Deng-yi GAO Jie ZHANG Sen WANG Yun GUO Bo |
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| Affiliation: | (Shandong Institute of Metrology,Jinan 250014,China;Shandong Institute of Food and Drug Testing,Jinan 250101,China) |
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| Abstract: | To meet the requirements of antimony detection,the standard reference material of antimony solution was developed.The standard reference material was prepared by using high-purity antimony and MOS grade nitric acid as raw materials by weight-capacity method,and the purity of antimony was determined by impurity deduction method.The metal impurities were analyzed by ICP-MS semi-quantitative method and were accurately determined by inductively coupled plasma mass spectrometry(ICP-MS).The gas impurities C,S,O,N and H were determined by inert gas melting-infrared absorption method and inert gas melting-thermal conductivity method.After the verifications of homogeneity and stability,the value of standard reference material was defined,and the uncertainty was estimated.The results confirmed that the concentration of antimony solution reference material was 1000μg/mL,while the relative expanded uncertainty was 1%(k=2). |
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| Keywords: | SRM of antimony metal purity impurity deduction ICP-MS uncertainty |
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