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Choice of the Focal Point Position Using Lasentec FBRM

2003; Wiley; Volume: 20; Issue: 1 Linguagem: Inglês

10.1002/ppsc.200390000

1521-4117

Jörg Worlitschek, Marco Mazzotti,

Field-Flow Fractionation Techniques

Abstract The Focused Beam Reflectance Measurement (FBRM) technique provides on‐line and in situ information about the chord length distribution (CLD) of a population of particles in dispersion. The effect of changing the focal point position on the measured CLD is experimentally analyzed by carrying out single particle FBRM determinations in both pure water and a dispersion of fines. The results allow some general conclusions to be drawn about optimal focal point positions.