Mass Spectrometry Techniques and Applications

Mass spectrometry works by converting molecules into ions and measuring their mass-to-charge ratios, giving researchers a precise way to identify and quantify almost any compound in a complex mixture. Advances in ionization methods — particularly electrospray ionization and MALDI — have made it possible to analyze fragile biological molecules like proteins and peptides without destroying them, opening the technique to structural biology and proteomics at scale. Imaging mass spectrometry extends this further, mapping the spatial distribution of molecules directly on tissue sections, while ambient ionization methods push toward real-time analysis of samples in their native state, no laboratory preparation required. Current efforts focus on improving sensitivity and throughput, integrating ion mobility measurements to resolve molecules of identical mass but different shape, and translating these capabilities into clinical and field settings where rapid, reliable identification matters most.

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Keywords

Mass SpectrometryIonizationElectrosprayProteinsImagingAmbient Conditions