Matrix-Assisted Laser Desorption and Desorption Electrospray Ionization Mass Spectrometry Coupled to Ion Mobility
James I Langridge1, Emmanuelle Claude2
1Waters Corporation, Wilmslow, UK. james_Langridge@waters.com.
Abstract:
Matrix-Assisted Laser Desorption Ionization (MALDI) and Desorption Electrospray Ionization (DESI) are two complementary ionization techniques that have transformed the field of biomolecular analysis, enabling the measurement of a wide range of biomolecules by mass spectrometry. These techniques have also been applied to imaging mass spectrometry where the spatial localization of molecules is determined. Coupling this with Ion Mobility Spectrometry (IM) allows an additional level of separation and specificity to be obtained. Here, we describe the coupling of the technologies and the practical advantages of these combinations, highlighting specific examples.
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