摘要
目的应用超高效液相串联-四极杆静电场轨道阱质谱(UHPLC-Q-Orbitrap)联用技术,分析荷叶中的化学成分。方法采用Thermo Scientific Hypersil GOLD a Q(2. 1 mm×100 mm,1. 9μm)色谱柱和0. 1%甲酸乙腈溶液(A)-0. 1%甲酸水溶液(B)为流动相系统进行梯度洗脱;应用电喷雾离子源搭配静电场轨道阱(orbitrap)检测器正负离子模式检测荷叶中的化学成分。结果根据一级高分辨率质谱精确质荷比数据、二级高分辨率质谱碎片离子、Thermo Scientific中药成分数据库和mz Cloud网络数据库并结合文献报道,从荷叶中共分析鉴定了53个化学成分,其中包括黄酮类21个,生物碱类13个,萜类5个,香豆素类3个,氨基酸类3个,木脂素类2个,其他类成分6个。结论应用UHPLC-Q-Orbitrap联用技术结合Thermo Scientific推出的中药成分数据库和mz Cloud网络数据库的数据处理软件Compound Discoverer,利用Mass Frontier对数据进行辅助解析,可以较为全面地阐明荷叶中的化学成分,为进一步研究荷叶的全面质量控制方法、体内吸收和代谢过程以及药效物质基础提供科学依据。
OBJECTIVE Todevelop a rapid and sensitive UHPLC-Q-orbitrap method for the identification of chemical constituents in Nelumbinis Folium. METHODS Thermo Scientific Hypersil GOLD aQ(2.1 mm×100 mm,1.9 μm) was used with 0.1% formic acid-acetonitrile solution and 0.1% formic acid-water solution as the mobile phase in gradient elution. The extract was detected by Q-orbitrapmass spectrometry equipped with an ESI ion source in both positiveand negative mode. RESULTS Based on the accurate mass-to-charge measurements, retention time, mass fragmentation patterns, compound discoverer software which can link to local compound database of Traditional Chinese Medicine from Thermo Scientific and online compound database from mzCloud, using Mass Frontier software to explain the fragmentations, a total of 53 compounds were screened and characterized, including 21 flavonoids,5 terpenes,13 alkaloids, 3 coumarins, 3 amino acids, 2 lignans and 6 other compounds. CONCLUSION These results are helpful for the comprehensive quality control, better comprehension of the metabolism, and further study of the pharmacodynamic substances from Nelumbinis Folium.
作者
隋振宇
侯朋艺
SUI Zhen-yu;HOU Peng-yi(China Food and Drug Administration Institute of Executive Development, Beijing 100073, China;Thermo Fisher Scientific, Shanghai 201206, China)
出处
《中国药学杂志》
CAS
CSCD
北大核心
2019年第10期813-818,共6页
Chinese Pharmaceutical Journal
关键词
荷叶
成分鉴定
液质联用
静电场轨道阱
高分辨质谱
Nelumbinis Folium
chemical constituent identification
liquid chromatography tandem mass spectrometry
orbitrap
high-resolution mass spectrometry
