Several proteins in the relative molecular mass (RMM) range 1150-29 000 are examined by means of both positive electrospray and matrix-assisted laser desorption/ionization mass spectrometry. Accuracy of the measured RMMs, resolution and overall sensitivity are discussed. Tbe presence of more than one component in a number of the investigated compounds permitted the assessment of both desorption methods for the analysis of mixtures. Solvent-induced conformational changes are linked to charge-state distribution shifts observed in some positive electrospray mass spectre.
Electrospray Vs Matrix-assisted Laser-desorption Ionization .1. Some Examples In the Protein Field
FAVRETTO, DONATA;
1994
Abstract
Several proteins in the relative molecular mass (RMM) range 1150-29 000 are examined by means of both positive electrospray and matrix-assisted laser desorption/ionization mass spectrometry. Accuracy of the measured RMMs, resolution and overall sensitivity are discussed. Tbe presence of more than one component in a number of the investigated compounds permitted the assessment of both desorption methods for the analysis of mixtures. Solvent-induced conformational changes are linked to charge-state distribution shifts observed in some positive electrospray mass spectre.File in questo prodotto:
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