METHODS:The concentration of ciclosporin was determined by HPLC after storing in the PVC infusion packages or glass bottle for different period of time and its change was investigated as well.

• 方法:将环孢素加入以PVC为材质的输液袋及玻璃瓶中,放置不同的时间后,采用高效液相色谱法测定环孢素药物浓度,并考察其变化。