An excellent analytical tool for the separation and analysis of TCM(Traditional Chinese Medicine) by using HR ESI TOF MS(High Resolution Electrospray Ionization Time of flight Mass Spectrometry) was developed. A home ...An excellent analytical tool for the separation and analysis of TCM(Traditional Chinese Medicine) by using HR ESI TOF MS(High Resolution Electrospray Ionization Time of flight Mass Spectrometry) was developed. A home built HR ESI TOF MS was applied to detect fat soluble components in Danshen( Salvia miltiorrhiza Bage ) directly. Compared with the method of HPLC ESI MS(High Performance Liquid Chromatograph Electrospray ionization Mass Spectrometry) method, HR ESI TOF MS method is more accurate, quick, simple and reliable, so the method can become an effective tool for the quality control of TCM.展开更多
目的利用超高效液相色谱-四极杆/飞行时间高分辨质谱(ultra performance liquid chromatography tandem quadrupole/time-of-flight high resolution mass spectrometry,UPLC-Q/TOF HRMS),建立同时鉴别和定量测定保健食品及其原料中的...目的利用超高效液相色谱-四极杆/飞行时间高分辨质谱(ultra performance liquid chromatography tandem quadrupole/time-of-flight high resolution mass spectrometry,UPLC-Q/TOF HRMS),建立同时鉴别和定量测定保健食品及其原料中的洛伐他汀及其类似物的分析方法。方法样品用Agilent Eclipse Plus C_(18)(50mm×2.1 mm,1.8μm)色谱柱分离,以甲醇和0.1%甲酸溶液作为流动相进行梯度洗脱,电喷雾正离子模式离子化,全扫描模式检测。结果当称样量为1 g时,酸式洛伐他汀、洛伐他汀、美伐他汀、辛伐他汀、去羟基洛伐他汀和洛伐他汀羟酸钠盐的检出限分别为40、25、25、25、25和50 ng/g;洛伐他汀、美伐他汀、辛伐他汀、去羟基洛伐他汀在25~200μg/L范围、洛伐他汀羟酸钠盐在100~800μg/L范围内线性关系良好(R≥0.99);5种成分在保健食品及原料中均有较好的回收率和稳定性。结论该方法简便、快速、灵敏、准确,适合于保健食品及原料中的洛伐他汀及其类似物的鉴别和定量测定。展开更多
文摘An excellent analytical tool for the separation and analysis of TCM(Traditional Chinese Medicine) by using HR ESI TOF MS(High Resolution Electrospray Ionization Time of flight Mass Spectrometry) was developed. A home built HR ESI TOF MS was applied to detect fat soluble components in Danshen( Salvia miltiorrhiza Bage ) directly. Compared with the method of HPLC ESI MS(High Performance Liquid Chromatograph Electrospray ionization Mass Spectrometry) method, HR ESI TOF MS method is more accurate, quick, simple and reliable, so the method can become an effective tool for the quality control of TCM.
文摘目的利用超高效液相色谱-四极杆/飞行时间高分辨质谱(ultra performance liquid chromatography tandem quadrupole/time-of-flight high resolution mass spectrometry,UPLC-Q/TOF HRMS),建立同时鉴别和定量测定保健食品及其原料中的洛伐他汀及其类似物的分析方法。方法样品用Agilent Eclipse Plus C_(18)(50mm×2.1 mm,1.8μm)色谱柱分离,以甲醇和0.1%甲酸溶液作为流动相进行梯度洗脱,电喷雾正离子模式离子化,全扫描模式检测。结果当称样量为1 g时,酸式洛伐他汀、洛伐他汀、美伐他汀、辛伐他汀、去羟基洛伐他汀和洛伐他汀羟酸钠盐的检出限分别为40、25、25、25、25和50 ng/g;洛伐他汀、美伐他汀、辛伐他汀、去羟基洛伐他汀在25~200μg/L范围、洛伐他汀羟酸钠盐在100~800μg/L范围内线性关系良好(R≥0.99);5种成分在保健食品及原料中均有较好的回收率和稳定性。结论该方法简便、快速、灵敏、准确,适合于保健食品及原料中的洛伐他汀及其类似物的鉴别和定量测定。