Trace impurities analysis of hydrocortisonum by LC/APCI MS
Affiliation:
Shanghai Institute of Organic Chemistry.Shanghai(200032)
Abstract:
High performance liquid chromatography atmosphere pressure chemical ionization time of flight mass spectrometry (HPLC APCI TOF MS) has been used for the analysis of impurities in hydrocortisonum. The technique of collision induced dissociation (CID) was applied to identify the structures of the impurities. It was proved to be simple, reliable and repeatable.