What do we see?

h_ret = retention for peptide based on Hamuro table - value in Daltons

deut_uptake = deuterium uptake for peptide: m(t = FD) - m(t_0) - value in Daltons

theo_ret = MaxUptake/h_ret

ret_scale = MaxUptake*deut_part/deut_uptake(t=FD)

ret_scale_2 = h_ret/deut_uptake(t = FD)