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Structural Analysis of Selected Characteristic Flavones by Electrospray Tandem Mass Spectrometry

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Abstract

Seven structure analogical flavonoid aglycones have been analyzed using electrospray ionization tandem mass spectrometry (ESI-MSn) in the negative-ion mode. The spectra obtained ESI-MSn allowed us to propose plausible schemes for their fragmentation mechanism. By analyzing the product ions spectra of deprotonated molecule ions [M–H]−, some neutral diagnostic losses and specific retro Diels–Alder fragments were obtained. By using all of these characteristic fragment ions we can specially differentiate the flavone isomer.

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Authors and Affiliations

  1. Laboratory of New Drug Research and Mass Spectrometry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China

    Wei Wu, Zhiqiang Liu, Fengrui Song & Shuying Liu

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  1. Wei Wu
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  2. Zhiqiang Liu
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  3. Fengrui Song
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  4. Shuying Liu
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Correspondence to Zhiqiang Liu.

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Wu, W., Liu, Z., Song, F. et al. Structural Analysis of Selected Characteristic Flavones by Electrospray Tandem Mass Spectrometry. ANAL. SCI. 20, 1103–1105 (2004). https://doi.org/10.2116/analsci.20.1103

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  • DOI: https://doi.org/10.2116/analsci.20.1103

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