Commerical reference shape standards use in the study of particle shape effect on laser diffraction particle size analysis
نویسندگان
چکیده
منابع مشابه
Characterisation of reference standards by low-angle laser light scattering (laser diffraction) particle size analysis
Polydisperse glass microsphere standards were analysed by 25 international teams of particle metrology specialists using unambiguous methods such as microscopy, sedimentation, electroformed sieving and Coulter counting. The nominal size distributions were: 1-10, 3-30, 10-100 and 50-350 microns (m). The Laser Diffraction Proficiency Testing Scheme (LDPTS) then sent the samples to about 65 parti...
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Fluid flow has a fundamental role in the performance of packed bed reactors. Some related issues, such as pressure drop, are strongly affected by porosity, so non-spherical particles are used in industry for enhancement or creation of the desired porosity. In this study, the effects of particle shape, size, and porosity of the bed on the hydrodynamics of packed beds are investigated with three ...
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Sedimentation has been a standard methodology for particle size analysis since the early 1900s. In recent years laser diffraction is beginning to replace sedimentation as the prefered technique in some industries, such as marine sediment analysis. However, for the particle size analysis of soils, which have a diverse range of both particle size and shape, laser diffraction still requires evalua...
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چکیده ندارد.
15 صفحه اولCritical Evaluation of the Use of Laser Diffraction for Particle-Size Distribution Analysis
m) by wet sieving from the clay and silt (particles 50 m). The sand fraction is determined by drying and Determination of soil particle-size distribution (PSD) by sieving, weighing the material remaining on the sieve. The silt hydrometer, and pipette methods as well as by laser diffraction (LD) suffers from inherent flaws, mainly due to the difficulty in defining and clay fractions are then det...
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ژورنال
عنوان ژورنال: AAPS PharmSciTech
سال: 2006
ISSN: 1530-9932
DOI: 10.1208/pt070249