ICP-OES不确定度评定模型的探讨  

A Study on Uncertainty Assessing Model in The Field of ICP-OES

作　　者：崔启明[1] 潘涵舜[1] 

机构地区：[1]中国上海测试中心

出　　处：《上海计量测试》2005年第2期11-14,共4页Shanghai Measurement and Testing

摘　　要：不确定度的大小是评定一种测量方法能力优劣的指征。等离子发射光谱(ICP- OES)在化学计量领域和分析测试领域均有广泛的应用,对于申请CNAL认证认可的实验室而言,校准实验室和检测实验室在不确定度评定的模型选用原则上存在很大的区别,本文采用国家一级或二级标准物质对仪器进行校准和检测试验,并根据需要拟订出校准实验室的检出限不确定度评定模型和检测实验室中检测结果不确定度评定模型。经过对大量数据的统计分析给出输入量的A类或8类不确定度评定实例,并按照国际通行方法进行不确定度的合成与扩展,最终得到ICP-OES在2种实验室中不确定度的判断。The size of the uncertainty is the advertise to assess a method ability. ICP-OES is applied wildly in the fields of chemical metrology and analysis. For those Lab. which is appling CNAL accreditation on the term of ICP-OES, it's important to take acknowledge of the difference between calibration and test, and to make a choice on the uncertainty assessing model. Through the calibration of the instrument which is used in measuring elementr by ICP-OES Method, with the (GBW) standard materials and the standard method, we collect a lot of testing data. Using the designed mathematical model, we figure out the uncertainty value of the independent variable. So the combined and expanded result we get finally.

关 键 词：ICP-OES 等离子发射光谱 化学计量 不确定度 评定模型 检出限 

分 类 号：O657.31[理学—分析化学]