METHODS The releasing degree of Nifedipine sustained release tablets(I) was determined with the apparatus demanded in the second method of the determination of dissolution.

• 方法采用溶出度测定法第二法装置,分别手工取样滤膜过滤和自动取样器滤芯过滤,测定硝苯地平缓释片(I)的释放度。