Characterization of the Oxidative Degradation Product of Darunavir by LC-MS/MS.A rapid, selective, and reliable LC-MS(n) method has been developed and validated for the isolation and structural characterization of the degradation product of darunavir (DRV). 
LC-MS/MS
The isolated degradation product was characterized by UPLC-Q-TOF and its fragmentation pathway was proposed. 
UPLC-Q-TOF