Abstract:Capillary electrophoresis with sodium dodecyl sulfate (CE‐SDS) is a common analytical technique for investigating the purity and molecular size heterogeneity of monoclonal antibody (mAb) drugs. In reducing CE‐SDS analysis of mAb‐A, the light chain (LC) peak exhibited severe tailing, seriously affecting the purity analysis. The purposes of this investigation are to clarify the source of tailing and develop a more appropriate CE‐SDS method to eliminate LC tailing. The degree of LC tailing was closely related to … Show more
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