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June 24, 2013
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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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Cite this Article
Ren, J., Sawhney, A., Tian, Y., Padda, B., Batoon, P. Determination of the Gas-phase Acidities of Oligopeptides. J. Vis. Exp. (76), e4348, doi:10.3791/4348 (2013).
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