s: Objective To establish a simple, sensitive and exact method for the determination of morphine and codeine in hot pot by solid-phase extraction and HPLC. Methods The hot pot samples were extracted and condensed by solid-phase extraction with Chem Elut catridges and then separated on a Shim-pack CLC-ODS HPLC column (6.0mm×150mm) using a gradient mobile phase consisting of CH_3OH-20mmol/LCH_3COONH_4(pH7.O)/40:60 at a flow rate of 1.0 ml/min. Detection wavelength was 212nm. Results The liner range was 0~50mg...