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Protein Quantification Assays

Protein assays, most notably quantitation or estimation assays, for determining protein concentration are one of the most widely used methods in life science research. Protein estimation of protein concentration is necessary in protein purification, electrophoresis, cell biology, molecular biology, and other research applications. We offer a unique selection of protein estimation assays that are improvements on the Biuret, Lowry, BCA and Bradford assays.  Each assay has its own benefits, however the NI™ (Non-Interfering™) Protein Assay and CB X™ Protein Assay overcome all interfering agents.

Although there are a wide variety of protein assays available, none of the assays can be used without first considering their suitability for the application. Each method has its own advantages and limitations and often it is necessary to obtain more than one type of protein assay for research applications.For additional information on protein assays, read the Protein Assays Handbook & Selection Guide.

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  • NI™ (Non-Interfering™) Protein Assay

    A highly sensitive, colorimetric protein assay that overcomes interference of common labor.....

      

  • CB™ Protein Assay

    An Improved Bradford (Coomassie Dye Based) Protein Assay

      

  • SPN™ Protein Assays

    A novel, ultra sensitive, spin format protein assay Single Samples or High Throughput S.....

      

  • Protein dotMETRIC™ Assay

    A 1μl Protein Assay For Rapid Estimation of Protein Concentration

      

  • PhosphoQuant™

    For the estimation of phosphates in phosphoproteins.

      

  • CB X™ Protein Assay

    The Only Protein Assay You'll Ever Need

      

  • RED 660™ Protein Assay

    A Ready-To-Use Colorimetric Protein Assay

      

  • Bicinchoninic Acid (BCA) Reducing Agent Compatible Protein Assay

    A reducing agent compatible Bicinchoninic Acid (BCA)Protein Assay

      

  • Bicinchoninic Acid (BCA) Protein Assay

    A highly sensitive colorimetric protein assay