Non-Interfering Protein Assay™ Kit is an easy-to-use protein assay that overcomes interference of agents found in protein solutions including detergents, chelating agents, reducing agents, amines, sugars, urea, and others. The Universal Protein Precipitating Agent (UPPA™ Reagent) is used to precipitate and immobilize the protein in the tube while the interfering reagents are removed.

• Protein concentration is based on the specific binding of copper to the peptide backbone
• With the increase in protein concentration, concentration of unbound copper ions decreases
• Colour density is inversely related to the amount of protein present in solution