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Development of the certified reference material of mercury in lyophilized human urine
Author(s): ZHAO Wei, ZHANG Fu-gang, LI Chun-ling, DU Hui-fang, PAN Ya-juan, ZHANG Jing, YAN Hui-fang
Pages: 139-
141
Year: 2011
Issue:
2
Journal: Chinese Journal of Industrial Hygiene and Occupational Diseases
Keyword: Mercury; Urinalysis; Reference standards;
Abstract: 目的 研制冻干人尿中汞成分分析标准物质.方法 冻干尿由正常人尿经过滤、加标、混匀、分装、冷冻干燥、辐射灭菌制备而成,使用原子荧光测定方法 对其均匀性和稳定性进行检验,由3家实验室用准确可靠的方法 确定标准值,并对尿中汞研制物的不确定度进行分析.结果 本研制物均匀性良好,-20 ℃保存可稳定18个月,2个水平的量值及不确定度分别为(35.6±2.1)和(50.5±3.0)μg/L.结论 尿中汞成分分...
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