Should the retention time of a monomer and a non-covalently linked dimer differ in HPLC-ESI-MS/MS

I know that shouldnt be the case but this is what i observe : the [M-H+]- elutes around 6.00 and the [2M-H+]- around 11 minutes in the reversed phase. The spectra look similar and could perfectly...

06 June 2017 7,163 1 View