饮用水中铝污染检测分析校准标准物质的研究

发布时间：2018-04-19 11:43

本文选题：铝 + 饮用水　；参考：《应用化工》2017年07期

【摘要】：根据环境监测和相关分析检测对铝标准物质的实际需求,研制了饮用水中铝污染检测分析校准标准物质。遵循国家标准物质的技术要求,对样品的包装、样品保存介质进行分析和优选。以经过纯度分析的高纯金属铝制备标准物质,对所制备的铝分析校准标准物质,采用单因素方差法评定均匀性;以先密后疏原则测试考察样品的稳定性。在充分考虑样品标准值误差来源及影响因素基础上,对不确定度进行评定。结果表明,样品的均匀性和稳定性指标符合国家级标准物质的技术要求,样品的标准值及扩展不确定度为500 mg/L和±6 mg/L。可作为水中铝测定的检测标准,满足量值传递的需求。
[Abstract]:According to the actual demand of environmental monitoring and correlation analysis for aluminum standard materials, the aluminum contamination detection and analysis calibration standard material in drinking water was developed.In accordance with the technical requirements of national standard materials, sample packaging, sample storage media analysis and selection.The homogeneity was evaluated by single factor variance method and the stability of the sample was tested by the principle of first compaction and later dispersing by using the purity analysis of high purity aluminum to prepare the standard material and the single factor variance method was used to evaluate the homogeneity of the prepared standard material for aluminum analysis and calibration.The uncertainty is evaluated on the basis of considering the error source of the standard value of the sample and the influencing factors.The results show that the uniformity and stability of the samples meet the technical requirements of national standard materials. The standard values and extension uncertainties of the samples are 500 mg/L and 卤6 mg / L.It can be used as the detection standard for the determination of aluminum in water and meet the demand of quantity transfer.
【作者单位】：环境保护部标准样品研究所国家环境保护污染物计量和标准样品研究重点实验室;
【基金】：环境保护部国家标准制修订项目(2014-63)
【分类号】：O652;R123.1

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