A homogeneity study using NIR spectroscopy: tracking magnesium stearate in Bohle bin-blender

Autor: Scott D. Reynolds, Fernando J. Muzzio, Andrew Lange, Joep Timmermans, Nhat-Hang Duong, Paulo E. Arratia
Rok vydání: 2003
Předmět:
Zdroj: Drug development and industrial pharmacy. 29(6)
ISSN: 0363-9045
Popis: A method was developed for studying mixing of cohesive pharmaceutical mixtures. A combination of accurate sampling and NIR spectroscopic analysis was developed as a suitable method to determine homogenization of magnesium stearate as a function of blending variables. A typical pharmaceutical blend containing a ratio 35:64:1 lactose, avicel, and magnesium stearate was used as a model system. The method accounted for variability of the concentration of magnesium stearate as well as variability of the excipients. Levels of magnesium stearate as low as 0.05% could be resolved by the method, and showed a predicting confidence interval above 98%.
Databáze: OpenAIRE
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