高效液相色谱法同时测定保健食品中红景天苷和腺苷
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林宏琳 女 主管技师 研究方向为营养与食品安全 E-mail:erianlin@sina.com

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Methodology of simultaneous determination of salidroside and adenosine in health food by high performance liquid chromatography
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    摘要:

    建立同时测定保健食品中的红景天苷和腺苷含量的高效液相色谱测定方法。 方法 采用50%甲醇为溶剂,超声提取样品中的的红景天苷和腺苷成分。采用shim-pack CLS-ODS色谱柱(150mm×4.6mm,5μm),流动相为甲醇+20mmol/L磷酸二氢钾水溶液(15+85,V/V),流速1.0ml/min,进样量10μl,紫外检测波长为红景天苷275nm,腺苷260nm。结果 红景天苷在10.0~200 μg/ml范围内线性良好(r=0.9995),平均回收率92.5%~99.5%,精密度2.8%~4.7%(n=6);腺苷在2.50~50.0μg/ml范围内线性良好(r=0.9996),平均回收率90.0%~94.0%,精密度2.1%~5.2%(n=6)。红景天苷和腺苷检出限LOD分别为0.01和0.005μg/g。结论 本方法快捷、简便、灵敏度高,可准确同时测定保健食品中的红景天苷和腺苷含量。

    Abstract:

    A method of high performance liquid chromatography was established for simultaneous determination of salidroside and adenosine in healh food.Methods Salidroside and adenosine in samples were extracted ultrasonically with 50%methanol as the solvent and separated on a shim-pack CLS-ODS column(150mm×4.6mm,5μm);the mobile phase consisted of methanol+20mmol/L Potassium dihydrogen phosphate(15+85,V/V). The flow rate was 1.0ml/min; the injection volume was 10μl; the UV detection wavelength of salidroside and adenosine ware 275and 260nm. Results The standard curve of salidroside was linear over the range in 10.0~200μg/ml(r=0.9995).The recovery was 92.5%~99.5%,RSD 2.8%~4.7% (n=6);The standard curve of adenosine was linear over the range in 2.50~50.0μg/ml(r=0.9995).The recovery was 90.0%~94.0%,RSD 2.1%~5.2%(n=6). The detection limits of salidroside and adenosine were 0.01and 0.005μg/g.Conclusion The method was simple, sensitive and accurate, it could be used for simultaneous determination of salidroside and adenosine in health food.

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林宏琳,李晓明,华永有,黄宏南.高效液相色谱法同时测定保健食品中红景天苷和腺苷[J].中国食品卫生杂志,2013,25(2):159-161.

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  • 收稿日期:2012-12-27
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  • 在线发布日期: 2013-05-10
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