The particle size distributions of RS powders before and after the extraction processes were determined in triplicate using a laser-diffraction particle size analyzer (Malvern Instruments, Malvern, UK) coupled with a Scirocco 2000 dry dispersion unit. A refractive index of 1.520 and an absorption of 0.1 was considered. Samples were fed into the system at a feed rate of 60% and a pressure of 2.5 bar until reaching an obscuration rate of 1.26%. The parameter D43 and the mean particle size distribution curves were obtained.
Scirocco 2000 dry dispersion unit
Manufactured by Malvern Panalytical
Sourced in United Kingdom
The Scirocco 2000 is a dry dispersion unit designed for particle size analysis. It provides a controlled, reproducible method for dispersing dry powders or granular materials prior to analysis using laser diffraction or other particle size measurement techniques. The Scirocco 2000 generates a stable and uniform powder cloud for reliable and consistent particle size distribution measurements.
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Lab products found in correlation
3 protocols using scirocco 2000 dry dispersion unit
1
Particle Size Distribution Analysis of RS Powders
2
Particle Size Analysis of Lactose Powders
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The lactose powders of different washing grades were sieved to separate 80, 160, 250, 355 and 500 µm fractions. The particle size distribution of the powders was measured by laser light scattering using a Malvern Mastersizer 2000 equipped with a Scirocco 2000 dry dispersion unit (Malvern Instruments, Worchestershire, UK).
3
Particle Size Distribution Analysis
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The PSD of the different size fractions was measured by laser light scattering using a Malvern Mastersizer 2000 equipped with a Scirocco 2000 dry dispersion unit (Malvern Instruments, Worcestershire, UK). The span of the distribution was calculated as
where the diameters d 10, d 50, and d 90 represent the particle size at 10%, 50%, and 90% in a cumulative size distribution respectively. The specific surface area was calculated from the surface weighted mean d 32 .
where the diameters d 10, d 50, and d 90 represent the particle size at 10%, 50%, and 90% in a cumulative size distribution respectively. The specific surface area was calculated from the surface weighted mean d 32 .
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