Objective To established an HPLC method for the analysis of hydroxycitric acid (HCA) and the simultaneous determination of illegally added rimonabant and sibutramine in functional food. Methods After ultrasonic extraction of the sample, HCA was analyzed at 210 nm wave length using 99% phosphoric acid (0.1%) ?1% methanol as the mobile phase; Rimonabant and sibutramine was detected at 223 nm wave length using 100% methanol as the mobile phase. Results HCA showed a good liner range between 0.001~1.0 mg/mL with an average spiked recovery of 90.49% ~103.90%; Rimonabant and sibutramine detection reached a liner range between 0.01~20 ?g/mL, and the limit of detection (LOD) was 1 ng/mL and 3 ng/mL, respectively. Conclusion The analysis of HCA and detection of rimonabant and sibutramine were simply operated with high analysis speed and high accuracy which was proved to be practical when used for quality monitoring of functional foods.
标题:HPLC检测功能食品中羟基柠檬酸主成份和两种非法添加药物
英文标题:HPLC analysis of the active component and two illegally added compounds in hydroxycitric acid functional food