盲样考核浓度预判及稀释方法——以原子荧光法测定水中砷为例  

Concentration Pre-judgment and Dilution Method of Blind Samples——A Case Study of Determination of Arsenic in Water by AFS

作　　者：崔勇[1] 黄霖[1] 

机构地区：[1]江苏省水文水资源勘测局南通分局,江苏南通226006

出　　处：《环境监测管理与技术》2013年第1期46-48,共3页The Administration and Technique of Environmental Monitoring

摘　　要：以原子荧光法测定水中砷为例,探讨了实验室盲样考核浓度预判及稀释方法。分析了3个砷盲样考核实例,归纳了"直接稀释法""系列稀释法""最大稀释法"3种方法,分别适用于盲样浓度范围窄、适中、宽3种情况,检测人员可根据考核机构给定的浓度范围合理选用。Based on case study of determination of arsenic in water by AFS, the concentration pre-judgment and dilution of blind samples were discussed. Direct dilution, series dilution and maximum dilution were summa- rized to be applicable to narrow, mediate and wide arsenic concentration, respectively. One of these methods may be selected depending on the concentration range given by the examination body.

关 键 词：盲样考核 浓度预判 稀释方法 原子荧光法 砷 水质 

分 类 号：O652.1[理学—分析化学] O657.31[理学—化学]