A new method based on reversed phase high performance liquid chromatography (HPLC), positive ion electrospray time-of-flight mass spectrometry (ESI-TOF/MS) has been developed for the characterization of insulin in commercial insulin injection.

• 用反相高效液相色谱(RP-HPLC-UV)和电喷雾飞行时间质谱(ESI-TOF/MS)鉴定商品化胰岛素注射液中的胰岛素。