HPLC Determination of Three Alkaloids in Rhizoma coptidis and Cortex phellodend Microextracted with in situ Formed Ionic Liquids
CAO Ximin*, WU Hao, ZHANG Jin, LIU Xia, DU Liming
Chinese Journal of Applied Chemistry . 2013, (12): 1489 -1493 .  DOI: 10.3724/SP.J.1095.2013.30296