Determination of Matrine and Oxymatrine inSophora Flavescensby Nonaqueous Capillary Electrophoresis-Electrospray Ionization-Ion Trap-Mass Spectrometry

Determination of Matrine and Oxymatrine inSophora Flavescensby Nonaqueous Capillary Electrophoresis-Electrospray Ionization-Ion Trap-Mass Spectrometry