https://kettenbachlab.org/wp-content/uploads/2025/09/blank.png00adminhttps://kettenbachlab.org/wp-content/uploads/2025/09/blank.pngadmin2011-01-27 01:21:512019-01-12 20:45:32Absolute quantification of protein and post-translational modification abundance with stable isotope-labeled synthetic peptides.