Determination of ephedrine and codeine in human urine by cation-selective exhaustive injection and sweeping micellar electrokinetic chromatography

Li Jun Li, Si Guang Li, Hai Yan Li, Zhuo Cai, Hao Cheng

Li Jun Li, Si Guang Li, Hai Yan Li, Zhuo Cai, Hao Cheng

中国化学快报 . 2009, (01): 84 -87 . DOI: 10.1016/j.cclet.2008.10.014