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Chemistry

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Determination of the Gas-phase Acidities of Oligopeptides
 

Determination of the Gas-phase Acidities of Oligopeptides

Article DOI: 10.3791/4348
June 24th, 2013

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Summary June 24th, 2013

The determination of the gas-phase acidities of cysteine-containing oligopeptides is described. The experiments are performed using a triple quadrupole mass spectrometer. The relative acidities of the peptides are measured using collision-induced dissociation experiments, and the quantitative acidities are determined using the extended Cooks kinetic method.

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