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Characterization of aconitine-type alkaloids in the flowers of Aconitum kusnezoffii by electrospray ionization tandem mass spectrometry by Yong Wang; Fengrui Song; Qingxuan Xu; Zhiqiang Liu; Shuying Liu is a Chemistry article available to read on EtoBox.

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## Abstract The fragmentation mechanism of aconitine‐type alkaloids in the flowers of __Aconitum kusnezoffii__ (FAK) was investigated using electrospray ionization tandem mass spectrometry (ESI‐MS^__n__^) firstly. The analysis of the collision‐induced dissociation (CID) spectra of three purified aconitine standards and six previously reported aconitines indicated that the fragmentation of the protonated aconitines at low‐energy CID follows a similar pathway. The elimination of a C~8~‐substituent such as an acetic acid or a fatty acid is the dominant fragmentation mode in MS2. Successive losses of CH~3~COOH, CH~3~OH, H~2~O, BzOH, and CO are the main fragmentation pathways of aconitine‐type alkaloids in MS^3^ spectra. Based on these features, a rapid method for the direct detection and characterization of alkaloids from an ethanolic extract of FAK is described. All the known aconitum alkaloids are detected and a series of lipo‐aconitines has been found for the first time in this plant. Copyright © 2003 John Wiley & Sons, Ltd.

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Author

Yong Wang; Fengrui Song; Qingxuan Xu; Zhiqiang Liu; Shuying Liu

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); Wiley-Blackwell; Wiley-Liss Inc; John Wiley & Sons Inc.; Wiley; Heyden And Son (ISSN 1076-5174)

Published

2003

Language

EN

Field

Chemistry (Physical Sciences)