Peptide mass fingerprinting
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Peptide mass fingerprinting, also known as protein fingerprinting, is an analytical technique for protein identification in which the unknown protein of interest is first cleaved into smaller peptides
A typical workflow of a peptide mass fingerprinting experiment.
Tandem mass spectrometry
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Tandem mass spectrometry, also known as MS/MS or MS2, is a technique in instrumental analysis where two or more stages of analysis using one or more mass analyzers are performed with an additional rea
A quadrupole time-of-flight hybrid tandem mass spectrometer
An ion trap mass spectrometer is an example of a tandem mass spectrometry in time instrument.
Chromatography trace (top) and tandem mass spectrum (bottom) of a peptide