Method : The chitosan and glycerine was used as the supplementary material to prepare levofloxacin hydrochlorid film former.The content was measured by UV-spectrophotometry.

• 方法 ：以壳聚糖、甘油为辅料，制备盐酸左氧氟沙星涂膜剂，采用紫外分光光度法测定含量。