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Pressure ulcers belong to the most chalenging clinical problems. As hydration level of such wounds is important for optimal healing, preparation of new wound dressing (WD) materials for pressure ulcers requires thorough in vitro evaluation as prerequisite to final in vivo testing. The aims of the study were to: (a) develop a simple method of preparation of asymmetric polymeric membrane, (b) to propose...
A sensitive HPLC method was developed and validated for the determination of sildenafil concentrations in rat plasma (200 μL) using a liquid–liquid extraction procedure and paroxetine as an internal standard. In order to eliminate interferences and improve the peak shape, a back‐extraction into an acidic solution was utilized. Chromatographic separation was achieved on a cyanopropyl bonded‐phase column...
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