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Mass spectrum characterization of five valepotriates by electrospray ionization tandem mass spectrometry

Wang, C.-G.; Liu, Y.; Shi, J.-L.; Xiao, Y.; Shi, S.-N.; Hou, W.-H.; Wang, Z.-J.

Zhongguo Zhong Yao Za Zhi 38(4): 578-584

2013

ISSN/ISBN: 1001-5302
PMID: 23713287
Document Number: 665976
To discuss mass spectrum characterization of five valepotriates including 'monoene' type (didrovaltrate), 'diene' type (valtrate, acevaltrate) and 'four-olefinic' type (baldrinal and homobaldrinal) by electrospray ionization tandem mass spectrometry (ESI-MS(n)). This study was carried out on the basis of electrospray ionization tandem mass spectrometric method and analysis of multistage fragments. The fragmentation patterns and structural assignment of 'monoene' type, 'diene' type and 'four-olefinic' type valepotriates in ESI-MSn under positive mode were summarized. The compounds have a strong pyrolysis rules and it can provide reference date for valepotriates in rapid structural identification, quantitative analysis and pharmacokinetic study.

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