| 摘要: |
| 对海水中无机混合元素标准样品进行了研究和制备。样品采用高纯试剂重量法制备, 以人工海水为样品介质, 用原子吸收法和原子荧光法对样品进行均匀性和稳定性研究; 多家实验室协作分析定值后数理统计确定标准值, 并进行不确定度评估。结果表明, 海水中无机混合元素标准样品的均匀性和稳定性良好; 可用于海水污染监测的仪器较准、分析方法的评价与验证、实验分析的质量控制和能力验证等方面。 |
| 关键词: 海水 无机混合元素 金属元素 非金属元素 标准样品 |
| DOI：10.11759/hykx20140321001 |
| 分类号: |
| 基金项目:环境保护部国家标准制修订项目(567) |
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| Development of seawater multiple inorganic elements reference material |
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| Abstract: |
| The preparation of multiple inorganic elements simulated seawater standard reference material was studied. This study describes the development of the standard Reference Material of Seawater. It was prepared using the weight method with reagent of high purity. The sample medium was artificial seawater. The homogeneity and stability were studied by atomic absorption spectrometry and Atomic fluorescence spectrometry. The certified concentration values and uncertainties for Seawater were obtained by the interlaboratory cooperative certification study conducted by several qualified laboratories. The results indicated that the sample was homogeneous and stable and it can be used for calibration instruments, evaluation methods, quality control of analysis, proficiency testing and other aspects. |
| Key words: seawater multiple inorganic elements metallic elements nonmetallic elements environmental reference material |
