Distribution of drugs in polymers loaded
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Flavio Forni; Gilberto Coppi; Valentina Iannuccelli; Maria Angela Vandelli; Mari
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Article
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1989
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John Wiley and Sons
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English
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Ethy1ene:vinyl acetate pellets were loaded at 20 "C by swelling the polymer with 1 and 3% (w/v) chloroformic solutions of tolbutamide. The energy dispersive X-ray analysis showed different concentrations of the tolbutamide sulfur in the pellets sections according to the loading time. At the beginnin