Fig. 6From: Formulation mitigations for particle formation induced by enzymatic hydrolysis of polysorbate 20 in protein-based drug products: insights from a full-factorial longitudinal studyIntact [PS20] in mAb X DP over storage duration (weeks at 5 °C). The 24 formulations (listed in Table 1) represent unique combinations of [mAb], initial [PS20], and pH. Intact [PS20] remaining at each time point was quantified by HPLC-ELSDBack to article page