Relative quantification of HER2 methionine oxidation (Met-83, Met-107, and Met-255) by ion current chromatogram analysis of the oxidized product and its parent peptide using the quantification software GRAMS/32™.

Relative quantification of HER2 methionine oxidation (Met-83, Met-107, and Met-255) by ion current chromatogram analysis of the oxidized product and its parent peptide using the quantification software GRAMS/32™.