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PSD by real-time analysis of images of particles in flow |
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Rabinski and Thomas (2004) studied the feasibility of particle characterization by capturing images of particles in a flowing sample stream and analying these images in real time to determine the PSD. This technique is referred to as dynamic imaging. It permits one to analyze samples with a wide range of particle sizes (ECD from ~1.5 to 1,000 µm) and concentrations (~1 to >1x106 ml-1). Images of the particles can be used for off-line analysis of shapes and transparency distributions within these shapes for selected particles. Samples need not be modified or prepared for analysis. Statistically representative results can be obtained in a couple of minutes per sample.
This technique has been implemented in a commercially available instrument (Brightwell Technologies, Inc., Ottawa, ON, Canada) capable of measuring the PSD in a range of 2 µm to 400 µm. Another implementation of the dynamic imaging technology of PSD measurement is the RapidVUE® instrument (Beckman Coulter, Inc., Fullerton, CA, USA). That instrument covers a particle size range of 20 µm to 2500 µm.
| CITATION: Jonasz M. 2006. PSD by real-time analysis of images of particles in flow (www.tpdsci.com/Tpc/PsdImgFlo.php). In: Top. Part. Disp. Sci. (www.tpdsci.com). |
HISTORY: Published: 17-Jan-2006 Modified: 18-Jul2006 Peer-reviewed: PENDING |
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