Čes. slov. farm. 2003, 52(5):244-247
Granulometry and Fractal Dimension
- Katedra farmaceutické technologie Farmaceutické fakulty Univerzity Karlovy, Hradec Králové
The fractal character of exponential particle size distribution makes it possible to use fractaldimension for the evaluation of the results of granulometric analysis. The conditions of sedimentationanalysis of talc in aqueous solution were optimized by adding nonionogenic tenside anddeflocculation electrolyte. Dispersion analysis demonstrated the suitability of minimally 0,2 g/l ofpolysorbate 80 for talc soaking. In the evaluation of pharmaceutical granulometry, it is advisable tosupplement the usually reported specific surface area with fractal dimension, which primarilycontributes to a more general interpretation of variability of particle size.
Keywords: particle size analysis; fractal dimension; particle size distribution; talc
Published: May 1, 2003 Show citation