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Direct Analysis in Real Time-Mass Spectrometry for the Rapid Detection of Metabolites of Aconite Alkaloids in Intestinal Bacteria

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Journal of The American Society for Mass Spectrometry

Abstract

In the present work, direct analysis of real time ionization combined with multi-stage tandem mass spectrometry (DART-MSn) was used to investigate the metabolic profile of aconite alkaloids in rat intestinal bacteria. A total of 36 metabolites from three aconite alkaloids were identified by using DART-MSn, and the feasibility of quantitative analysis of these analytes was examined. Key parameters of the DART ion source, such as helium gas temperature and pressure, the source-to-MS distance, and the speed of the autosampler, were optimized to achieve high sensitivity, enhance reproducibility, and reduce the occurrence of fragmentation. The instrument analysis time for one sample can be less than 10 s for this method. Compared with ESI-MS and UPLC-MS, the DART-MS is more efficient for directly detecting metabolic samples, and has the advantage of being a simple, high-speed, high-throughput method.

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Acknowledgments

This research work was supported by grants from the National Natural Science Foundation of China (no. 81073040, no. 81274046) and National Basic Research Program of China (973 Program) (2011CB505300, 2011CB505305).

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Correspondence to Fengrui Song.

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Li, X., Hou, G., Xing, J. et al. Direct Analysis in Real Time-Mass Spectrometry for the Rapid Detection of Metabolites of Aconite Alkaloids in Intestinal Bacteria. J. Am. Soc. Mass Spectrom. 25, 2181–2184 (2014). https://doi.org/10.1007/s13361-014-0991-z

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  • DOI: https://doi.org/10.1007/s13361-014-0991-z

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