[Mass spectrometric analysis of quinazoline alkaloid and limonin from Fructus Evodiae].

OBJECTIVE: To study Mass spectrometry of quinazoline alkaloid and limonin from Fructus Evodiae by an electrospray ionization (ESI) tandem mass spectrometry. METHODS: The ESI source was set at the positive ionization mode, and the MS1 and MS2 spectra of quinazoline alkaloid and limonin were acquired. RESULTS: The main fragments of quinazoline alkaloid and limonin from Fructus Evodiae were analyzed. CONCLUSIONS: The profiles of fragments will be usefull to set quality criteria and to study chemical composition of Fructus Evodiae.