A homogeneity study using NIR spectroscopy: tracking magnesium stearate in Bohle bin-blender.
Drug Dev Ind Pharm
; 29(6): 679-87, 2003 Jul.
Article
in En
| MEDLINE
| ID: mdl-12889786
ABSTRACT
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 35641 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%.
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Collection:
01-internacional
Database:
MEDLINE
Main subject:
Stearic Acids
Type of study:
Prognostic_studies
Language:
En
Journal:
Drug Dev Ind Pharm
Year:
2003
Document type:
Article
Affiliation country:
United States