| Literature DB >> 17574558 |
Ai-Hua Liu1, Hui Guo, Min Ye, Yan-Hua Lin, Jiang-Hao Sun, Man Xu, De-An Guo.
Abstract
By using HPLC-diode array detection-electrospray ion trap tandem mass spectrometry (HPLC-DAD-ESI-MS(n)) in negative ion mode, we have analyzed the fragmentation pathways of 11 phenolic acids which were isolated from Danshen. Then the extract of Danshen was analyzed, and a total of 42 phenolic acids, including sixteen new minor constituents, were identified or tentatively identified for the first time. A new solid-phase extraction (SPE) method, new HPLC separation method, new liquid chromatography (LC)-MS and LC-MS(n) (n=3-5) data and proposed fragmentation pathways, LC retention time for phenolic acids are reported.Entities:
Mesh:
Year: 2007 PMID: 17574558 DOI: 10.1016/j.chroma.2007.05.081
Source DB: PubMed Journal: J Chromatogr A ISSN: 0021-9673 Impact factor: 4.759