Physicochemical analysis and nonisothermal kinetic study of sertralineelactose binary mixtures

Ghaderi, F and Siahi Shadbad, M.R and Nemati, M and Monajjemzadeh, F and Valizadeh, H (2016) Physicochemical analysis and nonisothermal kinetic study of sertralineelactose binary mixtures. j o u r n a l o f f o o d a n d d r u g a n a l y s i s (xxx). pp. 1-8.

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Abstract

In the present study the physicochemical stability of sertraline with lactose was evaluated in drug-excipient binary mixtures. Different physicochemical methods such as differential scanning calorimetry (DSC), Fourier-transform infrared spectroscopy, and mass spectrometry were applied to confirm the incompatibility. The final aim of this study was to evaluate the kinetic parameters using a fast and sensitive DSC method. Solid-state kinetic parameters were derived from nonisothermally stressed physical mixtures using different thermal models such as Friedman, FlynneWalleOzawa, and KissingereAkahiraeSunose. Overall, the instability of sertraline with lactose was successfully evaluated. Further confirmation was made by tracking the Maillard reaction product of sertraline and lactose by mass spectrometry. DSC scans provided important information about the stability of sertraline in solid-state condition and also revealed the related thermokinetic parameters in order to understand the nature of the chemical instability. Copyright © 2016, Food and Drug Administration, Taiwan. Published by Elsevier Taiwan LLC. This is an open access article under the CC BY-NC-ND license

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