Quick Separation and Identification of 24 Chemical Constituents in Radix Astragali by HPLC-ESI-TOF/MS
- VernacularTitle:HPLC-ESI-TOF/MS对黄芪药材中24种化学成分的快速分离与鉴别
- Author:
Ting CHEN
;
Feng TIAN
;
Yuenian TANG
;
Yan LIU
;
Zhiyan LIN
;
Yechen WANG
- Publication Type:Journal Article
- Keywords:
Radix astragali;
Chemical constituents;
Identification;
HPLC-ESI-TOF/MS
- From:
China Pharmacist
2014;(4):593-596
- CountryChina
- Language:Chinese
-
Abstract:
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.
