摘要
Abstract
This study developed six certified reference materials of raw molybdenum ore with varying molybdenum contents(Mo range:0.084%~0.55%).Keyprocedures,includingcompositiondesign,raw material selection,crushing,grinding,homogeneity testing,and multi-laboratory certification,were carried out.Certified values and expanded uncertainties were ultimately determined for six ele-ments:Mo,Pb,Cu,K,S,and Fe.The results demonstrate that the molybdenum ore reference materials exhibit good homogeneity and reliable certified values,providing technical support for mine production control,beneficiation optimization,laboratory quality control,and analytical instrument calibration.关键词
钼原矿/标准样品/均匀性检验/协作定值/不确定度评定Key words
molybdenum raw ore/reference material/homogeneity test/collaborative certification/uncertainty evaluation分类
化学化工
