Using a standard Amicon® Ultra centrifugal filter, a few rounds of diafiltration can efficiently remove unincorporated label from an antibody labeling reaction without diluting the sample.
This page shows how to perform column packing and preparation for ion exchange chromatography and chromatafocusing when using Tricorn or XK columns available from GE Healthcare.
Samples for chromatographic purification should be clear and free from particulate matter. Simple steps to clarify a sample before beginning purification will avoid clogging the column, can reduce the need for stringent washing procedures, and can extend the life of
Purification protocols for immunoglobulins generally include affinity binding to Protein A or G chromatography media, washing unbound proteins, and eluting with a low pH buffer.
Monoclonal antibodies (MAb) continue to gain importance as therapeutic and diagnostic agents for many cancers. The process of screening hybridoma libraries for candidate MAbs typically requires several days to complete and can be labor-intensive when evaluating multiple MAbs in parallel.
Mini Dialysis Kit from GE Healthcare Lifescience is designed for the dialysis of small sample volumes with minimal handling and sample loss and reduces the pronounced streaking on 2-D gels caused by low-molecular-weight contaminants.