“…A 100 mL sterile beaker was filled with 10 g of norfloxacin ointment samples, and 50 mL of water was added. The beaker was spun for 15 min at 3200 rpm after being heated in a bathtub of water and kept at around 70 °C for 15 min . Following that, it was allowed to be cooled to ambient temperature.…”