目的:对瑞格列奈片中葡甲胺含量的高效液相色谱测定(HPLC)方法进行探析。方法:利用HPLC法,采用SHISEIDO SPOI AR C18作为色谱柱,流动相为乙腈-磷酸盐缓冲液,检查波长195mm,柱温保持25℃,保持流速1.0mL/min。结果:在20120801与20120802...目的:对瑞格列奈片中葡甲胺含量的高效液相色谱测定(HPLC)方法进行探析。方法:利用HPLC法,采用SHISEIDO SPOI AR C18作为色谱柱,流动相为乙腈-磷酸盐缓冲液,检查波长195mm,柱温保持25℃,保持流速1.0mL/min。结果:在20120801与20120802两批次瑞格列奈片中,葡甲胺含量分别为21.97mg/g与22.64mg/g。结论:在瑞格列奈片葡甲胺含量测定中,HPLC法具有可重复性强、方法简单、准确度高等优点,值得在临床中推广。展开更多
A gradient HPLC method was established for the determination of harpagoside and cinnamic acid in Radix Scrophulariae (Xuanshen) and a proposition was put forward for the lowest content of the characteristic and active...A gradient HPLC method was established for the determination of harpagoside and cinnamic acid in Radix Scrophulariae (Xuanshen) and a proposition was put forward for the lowest content of the characteristic and active constituent (harpagoside) for qualified Radix Scrophulariae. The experimental conditions were as follows: Ultrasphere ODS column (250 mm 4.6 mm, 5 mm), mobile phase: acetonitrile-water (containing 1.0% acetic acid) (20:8050:50) (20 min), flow-rate 1 mLmin-1, room temperature, detection wavelength 278 nm. Twenty-eight samples of Xuan-shen (Radix Scrophulariae) from different districts of China were analyzed and the contents of harpagoside and cinnamic acid in Xuan-shen were 0.041~0.244% and 0.012~0.068% respectively. The recoveries (RSD)% were 97.13(0.80)% for harpagoside and 99.38(0.51)% for cinnamic acid. The method is simple and accurate. It can be used for the quality control of Radix Scrophulariae. We propose that the content of harpagoside in qualified Radix Scrophularia should be no less than 0.05%.展开更多
文摘目的:对瑞格列奈片中葡甲胺含量的高效液相色谱测定(HPLC)方法进行探析。方法:利用HPLC法,采用SHISEIDO SPOI AR C18作为色谱柱,流动相为乙腈-磷酸盐缓冲液,检查波长195mm,柱温保持25℃,保持流速1.0mL/min。结果:在20120801与20120802两批次瑞格列奈片中,葡甲胺含量分别为21.97mg/g与22.64mg/g。结论:在瑞格列奈片葡甲胺含量测定中,HPLC法具有可重复性强、方法简单、准确度高等优点,值得在临床中推广。
文摘A gradient HPLC method was established for the determination of harpagoside and cinnamic acid in Radix Scrophulariae (Xuanshen) and a proposition was put forward for the lowest content of the characteristic and active constituent (harpagoside) for qualified Radix Scrophulariae. The experimental conditions were as follows: Ultrasphere ODS column (250 mm 4.6 mm, 5 mm), mobile phase: acetonitrile-water (containing 1.0% acetic acid) (20:8050:50) (20 min), flow-rate 1 mLmin-1, room temperature, detection wavelength 278 nm. Twenty-eight samples of Xuan-shen (Radix Scrophulariae) from different districts of China were analyzed and the contents of harpagoside and cinnamic acid in Xuan-shen were 0.041~0.244% and 0.012~0.068% respectively. The recoveries (RSD)% were 97.13(0.80)% for harpagoside and 99.38(0.51)% for cinnamic acid. The method is simple and accurate. It can be used for the quality control of Radix Scrophulariae. We propose that the content of harpagoside in qualified Radix Scrophularia should be no less than 0.05%.