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HPLC-UV-FTICRMS/MS~n法分离鉴定葛根素原料药中4种有关物质
引用本文:王鹏远,吴彩胜,吴松,张金兰.HPLC-UV-FTICRMS/MS~n法分离鉴定葛根素原料药中4种有关物质[J].质谱学报,2010,31(3):143-151.
作者姓名:王鹏远  吴彩胜  吴松  张金兰
作者单位:中国医学科学院,北京协和医学院,药物研究所,北京100050
基金项目:卫生行业科研专项项目 
摘    要:采用高效液相色谱-紫外检测器-傅里叶变换离子回旋共振质谱(HPLC-UV-FTICRMS/MSn)技术获得了葛根素及其有关物质的MSn和HRMS数据,分析其可能的裂解机制,推断有关物质的结构,并依据HRMS数据确证了有关物质及其部分碎片的分子组成,最终鉴定葛根素原料药中4种有关物质,其准分子离子峰M+H]+分别为m/z433.112 95、433.112 92、417.118 01和417.118 01,通过质谱裂解机制研究以及与文献数据的对比,推测它们的结构分别为3’-羟基葛根素、染料木素-8-C-葡萄糖苷、新葛根素B和新葛根素A。

关 键 词:葛根素  电喷雾电离(ESI)  傅里叶变换离子回旋共振质谱(FTICR-MS)  结构鉴定  

Separation and Characterization of 4 Related Impurities in Puerarin Bulk Drug by HPLC-UV-FTICRMS/MSn
WANG Peng-yuan,WU Cai-sheng,WU Song,ZHANG Jin-lan.Separation and Characterization of 4 Related Impurities in Puerarin Bulk Drug by HPLC-UV-FTICRMS/MSn[J].Journal of Chinese Mass Spectrometry Society,2010,31(3):143-151.
Authors:WANG Peng-yuan  WU Cai-sheng  WU Song  ZHANG Jin-lan
Affiliation:Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
Abstract:The molecular structures and mechanism for the fragmentations of the related impurities were proposed by the MSn and HRMS results obtained by high performance liquid chromatography-ultraviolet detector-fourier transform ion cyclotron resonace mass spectrometry(HPLC-UV-FTICRMS/MSn).The molecular compositions of the related impurities and some of the fragmentations were confirmed by the HRMS datas.Four related impurities in puerarin bulk drug were separated.Their + ion peaks are m/z 433.112 95,433.112 92,417....
Keywords:puerarin  electrospray ionization(ESI)  fourier transform ion cyclotron resonance mass spectrometry(FTICR-MS)  structure characterization  
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