Results for the clipping for both the removal of the H and HG were comparable between the four DP batches and DS with a mean 0.80% the N-terminal histidine clipping and 0.39% for the N-terminal histidine/glycine clipping compared to the non-modified pepNde HGEGTFTSDVSSYLEEQAAK. The quanNtaNon of these CQAs via iMAM SCX-MS analysis reported a mean result of 2.40 % for the Nterminal hisNdine clipping and a mean result of 0.63 % for the N-terminal hisNdine/glycine clipping compared to the non-modified pepNde HGEGTFTSDVSSYLEEQAAK (Figure ).