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gu ti da li jing biao zhun qi rong jiao li zi de fa sheng ji ying yong
Author(s): 
Pages: 36-41
Year: Issue:  2
Journal: Journal of Hygiene Research

Keyword:  单分散性大粒子动力学直径高浓度分析技术大粒径大颗粒分析灵敏度粒径标准荧光分析;
Abstract: 使用30%的荧光素铵高浓度溶液,并采用一些特殊技术,可以用振动孔单分散气溶胶发生器产生固体大粒径标准粒子。所产生的荧光素铵大粒子是光滑密实圆球,密度为1.35克/厘米~3。其空气动力学直径可达50微米以上,几何标准偏差σg可小于1.05。应用这些标准粒子时,采用了荧光分析技术,分析灵敏度可优于?微克/升。本文还叙述了这种标准大粒子的几种应用实例。
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