Abstract
Desorption electrospray ionization mass spectrometry (DESI-MS) is a relatively new ambient surface analysis method. This technique requires little or no sample preparation prior to the actual analysis. Along with other application areas, DESI-MS is used to obtain chemical images of different biomolecules in biological tissue sections. In the case of biological tissue analysis, only preparation of the tissue slices is necessary. Furthermore, the method does not require the use of an ionization matrix preventing the redistribution of analytes prior to the analysis. Chemical images are obtained by monitoring the mass spectrometric signals of compounds while moving the sample relative to the DESI sprayer.
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Acknowledgments
The imaging protocols described here were derived from work supported by the Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences, United States Department of Energy under Contract DE-AC05-00OR22725 with ORNL, managed and operated by UT-Battelle, LLC.
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Kertesz, V., Van Berkel, G.J. (2010). Chemical Imaging with Desorption Electrospray Ionization Mass Spectrometry. In: Rubakhin, S., Sweedler, J. (eds) Mass Spectrometry Imaging. Methods in Molecular Biology, vol 656. Humana Press, Totowa, NJ. https://doi.org/10.1007/978-1-60761-746-4_13
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DOI: https://doi.org/10.1007/978-1-60761-746-4_13
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