Gas phase electrophoretic molecular mobility analysis (GEMMA) is a method for chemical analysis in which nanoflow electrospray ionization creates highly charged ions from macromolecules that are charge reduced and separated in a differential mobility analyzer, hence the method is also known as nES DMA or nES GEMMA.
See also Ion-mobility spectrometry–mass spectrometry Differential mobility detector Particle mass analyser Electrical mobility Electrical aerosol spectrometer
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