AN APPROACH TO IMPROVE THE ACCURACY OF SUBMICRON PARTICLE-SIZE DISTRIBUTION MEASUREMENT USING THE HORIBA-CAPA-700

被引:10
作者
BOWEN, P
DIRKSEN, JA
HUMPHREYBAKER, R
JELINEK, L
机构
[1] SWISS FED INST TECHNOL LAUSANNE EPFL,DEPT CHEM,PHYS CHEM LAB,CH-1015 LAUSANNE,SWITZERLAND
[2] SWISS FED INST TECHNOL LAUSANNE EPFL,DEPT CHEM,CHIM TECH LAB,CH-1015 LAUSANNE,SWITZERLAND
关键词
D O I
10.1016/0032-5910(93)80009-Y
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
An approach to improve the accuracy of the measurement of sub-micron particles using the Horiba CAPA-700 particle size analyser has been developed. A computer program has been written which corrects for the light scattering of small particles (<5 mum) using a modified Mie theory to calculate the light extension coefficient. An example using a mixture of two monodispersed spherical silica powders illustrates the importance of the correction and gives an accuracy of +/-5% for a 50/50 wt.% mixture. The limitations of the approach are also discussed.
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页码:67 / 71
页数:5
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