A detailed and well thought out Bradford protein assay page using a spectrophotometer. Includes information such as the Bradford assay is very fast and uses about the same amount of protein as the Lowry assay, comments, procedural steps, equipment used and more. - [Read Bradford Protein Assay]
Lowry – Protein Determination. Quantitation of total protein using the lowry protein assay. Dr. Mario Lebendiker. The Wolfson Centre for Applied Structural Biology, The Hebrew University of Jerusalem. Method materials and notes for the Lowry assay. - [Read Lowry – Protein Determination]
Lowry Protein Assay. The Lowry procedure is one of the most venerable and widely-used protein assays, being first described in 1951 [Lowry et al., J. Biol. Chem. 193: 265-275 (1951)]. Under alkaline conditions, copper complexes with protein. When folin phenol reagent (phospho-molybdic-phosphotungstic reagent) is added, the Folin-phenol reagent binds to the protein. Bound reagent is slowly reduced and changes color from yellow to blue. P.J. Hansen, Dept. of Animal Sciences, University of Florida. - [Read Lowry Protein Assay]
Lowry Protein Assay Protocol. Yu-li Wang Lab, Univ. Massachusetts Medical School. Detailed protocol including materials. - [Read Lowry Protein Assay Protocol]
Bradford Protein Assay, Lowry Protein Assay, Biuret Assay. Protein concentration measurement. Dr. Heidcamp, Department of Biology, Gustavus Adolphus College. - [Read Spectrophotometry]