Particle size distribution by space or time dependent extinction profiles obtained by analytical centrifugation

被引：61

作者：

Detloff, Torsten ^{[1
]}

Sobisch, Titus ^{[1
]}

Lerche, Dietmar ^{[1
]}

机构：

[1] LIM GmbH, D-12489 Berlin, Germany

来源：

PARTICLE & PARTICLE SYSTEMS CHARACTERIZATION | 2006年 / 23卷 / 02期

关键词：

analytical centrifugation; extinction profiles; particle size analysis; sedimentation;

D O I：

10.1002/ppsc.200601028

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The particle size distribution of suspensions of fine particles was determined by a photocentrifuge from transmission/extinction profiles. Photocentrifuges provide a useful tool for the characterization and quality control of suspensions. While the variation of the light extinction curves caused by centrifugal segregation allows a qualitative description, a rigorous formulation provides a quantitative characterization. The present work reports on the determination of the particle size distribution using space and time resolved extinction profiles. The particle size distribution is obtained by analyzing the variation of the extinction at any point of the sample over the full centrifugation time or by analyzing the extinction variation over the entire sample length for any centrifugation time span. The advantage of the second method is the potential to save time.

引用

页码：184 / 187

页数：4

共 8 条

[1]

Allen T, 1999, PARTICLE SIZE MEASUR

[2]

*ISO, 2001, 13318 ISO

[3] PARTICLE SIZE DETERMINATION BY CENTRIFUGAL PIPET SEDIMENTATION [J].