摘要
研制了国家级水质汞标准物质,用作汞测定分析的质量控制标准。依据国家标准样品工作导则的技术要求,制备汞标准物质;采用原子荧光光谱法对样品进行均匀性和稳定性研究;以多个实验室协作分析定值的统计结果确定标准值,并进行不确定度评估。经检测汞标准物质均匀性良好,稳定性可达36个月以上;样品量值准确,与美国同种标准物质进行比对具有可比性。研制的汞标准物质符合国家标准物质的技术要求,标准编号为GSB07-3173—2014;可用于水质汞元素检测的质量控制,分析方法研究以及分析实验室能力验证等方面。
To develop certified reference material（CRM） of mercury was developed,which can be used as quality control sample for analysis of mercury in samples. Prepare certified mercury reference materials ac- cording to the directives for the work of reference materials GB/T 15 000. The homogeneity and stability was studied by hydride atomic fluorescence spectrometry. The certified concentration value and uncertainty for mercury environmental reference material was obtained by the interlaboratory cooperative certification study. The mercury reference material is homogeneous, the period of validity is not less than 36 months. The certified value of environmental reference materials of mercury is comparable to American environ- mental reference material of mercury in water. The mercury reference material can conform to the techni- cal requirement of the certified reference material. The serial numbe of national standard：GSB 07-3173- 2014. It can be used for quality control, evaluation methods, proficiency testing, and other aspects.
出处
《应用化工》
CAS
CSCD
北大核心
2017年第4期794-797,共4页
Applied Chemical Industry
基金
国家标准化管理委员会国家标准制修订项目资助(S2012034)
关键词
汞
水环境
环境监测
质量控制
标准物质
mercury
water medium
environmental monitoring
quality control
reference materials
