Purification of one single protein from a complex mixture such as blood, serum or cell culture is typically laborious, time-consuming and expensive.
For the characterization of the function and structure of the desired protein, an efficient method for protein purification is essential both in quality and in quantity. The developments of techniques for protein purification have been essential for many of the developments made in diagnostic, pharmaceutical and biotechnology applications. As a result, different methods based on protein size, shape, physico-chemical properties and binding affinity have become an essential tool in the laboratory where protein purification is needed. Since affinity binding has been found to be cost effective, rapid, and extremely efficient, it is considered to be today’s method of choice or reference.