Holly Ahern | May 27, 1990 | 3 min read
Most life scientists, at some point in their careers, are faced with the problem of purifying a specific protein from a biological solution. For example, they may need to purify an antibody from a serum, or a single E. coli protein from an extract. The separation of a single protein from a mixture of thousands is a considerable task - it takes a long time to collect enough raw materials to make purification worthwhile. Purification is necessary, however, to provide valuable information about th