摘要：对6种编号分别为GBW (E) 120128~GBW (E) 120133, 标称值分别为0.6、5、10、15、25、50μm的国家二级粒径标准物质, 采用不同聚合技术制备得到单分散标准物质候选物, 采用扫描电子显微镜对平均粒径进行定值, 结果可溯源至国家长度标准。结果表明:标准物质的均匀性、稳定性良好, 可广泛应用于亚微米-微米级微粒粒径分析仪的校准与计量检定。

关键词：亚微米；微米；粒度；标准物质

Abstract：Six kinds of particle size certified reference materials with nominal values of 0.6, 5, 10, 15, 25, 50 μm, coded with GBW (E) 120128~GBW (E) 120133, were been developed. The candidate monodisperse materials of CRMs were prepared by different polymerization techniques, and the average particle size was determined by scanning electron microscope. The results show that the developed CRMs have good homogeneity, and can be widely used in the particle size analyzer calibration.

Keywords: submicrometer，micrometer；particle size；certified reference materials