10LI H L, Z/-IANG W D, LIU R H, et al. Simultaneous determination of four active alkaloids from a traditional Chinese medicine Corydalis saxicola Bunting. (Yanhuanglian) in plasma and urine samples by LC-MS-MS [ J]. J Chromat B Analyt Technol Biomed Life Sci, 2006, 831 (1-2) : 140-146.