Piracetam tablets were determined by HPLC using phenacetin as internal standard.Average recovery and RSD were satisfactory.

• 以非那西丁为内标，采用HPLC法测定吡拉西坦（脑复康）片的含量。平均回收率为99．5%25，RSD为0．6%25。方法准确，简便。