Investigation of flavonoid profile of Scutellaria bacalensis Georgi by high performance liquid chromatography with diode array detection and electrospray ion trap mass spectrometry
Investigation of flavonoid profile of Scutellaria bacalensis Georgi by high performance liquid chromatography with diode array detection and electrospray ion trap mass spectrometry
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DOI:
10.1016/j.chroma.2009.04.021
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发表时间:
2009-06-05
影响因子:
4.1
通讯作者:
Yao, Shouzhuo
中科院分区:
文献类型:
--
作者:
Liu, Guozhu;Ma, Jinyu;Yao, Shouzhuo
Scutellaria baicalensis Georgi is a well-known medicinal plant widely used in China and other East Asian countries. High performance liquid chromatography combined with diode array detection and electrospray ion trap mass spectrometry Was used to determine the flavonoid profile of S. baicalensis. Under the optimized experiment conditions, 32 flavonoids were clearly detected. Eighteen main ones were doubtless identified by comparing their retention time, UV and NIS (MSn) data with isolated or commercial standards. The UV characteristics of these 18 known standards were studied in derail. The rules summarized provided valuable indications for the Subsequent on-line identification processes. By interpreting both the MS and the UV data in detail, other 13 minor flavonoids in S. baicalensis were on-line identified successfully. (C) 2009 Elsevier B.V. All rights reserved.