DVS method by Dr Daryl Williams

The thermodynamic stability of pharmaceutical materials affects all levels of formulation, process development and storage. Thermodynamic instability can range from highly ordered crystals with different polymorphs or solvates to completely amorphous materials. Vapor sorption techniques like Dynamic Vapor Sorption and Inverse Gas Chromatography are powerful tools in the identification and characterization of these materials.

Damiano Cattaneo, Instrumentation Scientist of Surface Measurement Systems, shows the different types of materials that can be characterised using Dynamic Vapor Sorption (DVS) instruments.

This video introduces Surface Measurement Systems' Inverse Gas Chromatography - Surface Energy Analyzer, and its applications including powder flow, dispersive surface energy, lewis acid-base surface chemistry, and surface vs bulk amorphous content measurements.