ICP-AES法测定低合金钢中铬的不确定度评定  

Evaluation of uncertainty for measurement of chromium content in low-alloy steel by inductively coupled plasma-atomic emission spectrometry

作　　者：林亚萍[1] 李洁[1] 

机构地区：[1]武汉钢铁(集团)公司研究院,湖北武汉430080

出　　处：《钢铁研究》2008年第4期48-50,共3页Research on Iron and Steel

摘　　要：分析了电感耦合等离子体原子发射光谱法(ICP-AES)测定低合金钢中铬的检测过程,建立了该方法的定量数学模型。研究了该检测过程中不确定度的主要来源,并计算了公式中各变量的不确定度,最后计算出检测结果的合成标准不确定度和扩展不确定度。Abstract. The measurement of chromium content in low-alloy steel by inductively coupled plasma-atomic emission spectrometry（ICP-AES） is analyzed and the calculation formula is given in the paper. The main factors affecting the uncertainty of the measurement were ascertained and the uncertainties of each variable in the formula were calculated. The combined uncertainty and expanded uncertainty were finally obtained.

关 键 词：不确定度 电感耦合等离子体-原子发射光谱法 低合金钢 铬 

分 类 号：TG111.3[金属学及工艺—物理冶金]