David R. Caprette, Rice University
The Bradford assay is very fast and uses about the same amount of protein as the Lowry assay. It is fairly accurate and samples that are out of range can be retested within minutes. The Bradford is recommended for general use, especially for determining protein content of cell fractions and assesing protein concentrations for gel electrophoresis.
http://www.ruf.rice.edu/~bioslabs/methods/protein/bradford.html
