Native RPLC (nRPLC) of AbbVie model ADC with varying hydrophobicity of bonded phase, as denoted by the structures. Gradient conditions are A: 50 mM NH4OAc, pH 7, B: 50 mM NH4OAc, 50% IPA, pH 7, 0–100%B/40 min, 100%B/5 min, 100 μL/min, 30 °C. The same tentative labels as for the HIC chromatogram of Figure 2d are made due to the similarity.