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Experimental evaluation of three single-particle dissolution models.

P V Pedersen·K F Brown
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Abstract

The dissolution of the 60-85-mesh fraction os recording, flow-through dissolution apparatus equipped with a dissolution cell; it was particularly suitable for kinetic analysis of multiparticulate systems. By using a time-scaling approach, experimental data are compared with theoretical calculations to evaluate, quantitatively, which of three single-particle dissolution models best describes the data and how well the multiparticulate kinetics can be explained mathematically. The nonspherical tolbutamide particles are replaced in the calculations by a hypothetical system of spherical particles that appears to be log-normally distributed. This procedure permits the calculation of the intrinsic dissolution profile, considering both size distribution and particle shape effects.

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KineticsModels, TheoreticalParticle SizeSolubilityTemperatureTolbutamideJournal Article

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BibTeXRIS

P V Pedersen, K F Brown. 1976. Experimental evaluation of three single-particle dissolution models.. https://doi.org/10.1002/jps.2600651007

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