摘要
目的：采用HPLC-ESI-TOF /MS对黄芪药材中的化学成分进行快速分离与鉴别。方法：采用Agilent poroshell 120 SB-C18（100 mm ×3 mm,2.7μm）色谱柱,流动相为0.1%甲酸水溶液-乙腈,梯度洗脱,流速：0.4 ml·min-1,检测波长254 nm,柱温25℃,进样量：10μl ；使用ESI离子源,在正离子模式下采集数据,N2流速10 L·min-1,载气温度350℃,毛细管电压4 kV,轰击电压165 V,扫描质子范围m/z 100~1100。结果：HPLC-ESI-TOF /MS方法对黄芪药材进行了在线化学成分分离与质谱表征,一次性在一张图谱上共鉴别出黄芪中24种主要化学成分。结论：建立了一种基于HPLC-ESI-TOF/MS联用技术对黄芪中的化学进行快速、高效的分析方法,可为黄芪的药效物质基础和质量控制研究奠定基础。
Objective：To analyze the chemical constituents in Radix astragali by high-performance-liquid chromatography-time of flight mass spectrometry（HPLC-TOF/MS）. Methods：An Agilent poroshell 120 SB-C18 column（100 mm × 3 mm,2. 7 μm）was adopt-ed. The mobile phase was composed of acetonitrile-0. 1% formic acid with nonlinear gradient elution. The flow rate was 0. 4 ml· min-1 . The UV detection wavelength was set at 254nm, the column temperature was 25℃ and the injection volume was 10μl. Electron spray ionization and positive mode was adopted, the flow and temperature of the carrier gas（ N2 ） was 10 L·min-1 and 350℃, respec-tively. The capillary voltage was 4 kV, the bombardment voltage was 165 V, the spectra were recorded within the range of m/z 100~1 100. Results：A total of 24 chemical constituents were identified from Radix astragali by HPLC-TOF/MS simultaneously. Conclu-sion：An efficient and fast HPLC-TOF/MS approach has been established for studying the chemical constituents in Radix astragali, which lays the foundation for the study on pharmacodynamic material basis and quality control of Radix astragali.
出处
《中国药师》
CAS
2014年第4期593-596,共4页
China Pharmacist
