High-resolution electrospray ionisation mass spectrometry

Definition: Any type of mass spectrometry where the sample is ionised by forcing a solution (usually in an organic solvent) of the sample through a small heated capillary (at a flow rate of 1--10 L min-1) into an electric field to produce a very fine mist of charged droplets. When the ions are analysed using their mass-to-charge ratios the exact mass is determined as opposed to the nominal mass (the number of protons and neutrons).

ID: CMO:0000485

Synonyms:

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