金属钼中氧元素系列标准样品定值过程中量值溯源性探究
Exploring the Quantity Traceability in the Certification Process of Oxygen Element Series Standard Samples in Molybdenum Metal
谢明明 1王波 1王虎 1崔玉青1
作者信息
- 1. 金堆城钼业股份有限公司,陕西 西安 710077
- 折叠
摘要
以惰气熔融红外吸收法作为基础,采用重铬酸钾基准试剂作为校正点对金属钼中氧含量进行测定,解决了金属钼中氧元素系列标准样品定值过程中量值溯源性难题.量值溯源性比对实验结果在扩展不确定度范围内,精密度RSD小于10%,加标回收率在90%～110%.
Abstract
Based on the inert gas melting infrared absorption method and using potassium dichromate reference rea-gent as a calibration point,the determination of oxygen content in metal molybdenum has solved the problem of quantity traceability in the certification process of oxygen element series standard samples in metal molybdenum.The results of the comparative experiment on quantity traceability exploration are within the expanded uncertainty range,with precision RSD less than 10% and spiked recovery rates ranging from 90% to 110% .
关键词
钼/氧/标准样品/定值/量值溯源Key words
molybdenum/oxygen/standard samples/certification/quantity traceability引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据