
Photostability testing using online reactor HPLC hyphenation and mass spectrometric compound identification illustrated by ketoprofen as model compound
Keywords: API; active pharmaceutical ingredient; DAD; diode array detection; EI; electron ionization; ESI; electrospray ionization; ESI+; positive electrospray ionization; FDA; US Food and Drug Administration; GC; gas chromatography; HPLC; high performance liquid c