Thermo Scientific Guardian Peroxidase Conjugate Stabilizer/Diluent preserves the functional integrity and activity of horseradish peroxidase conjugated antibodies and other proteins at very dilute concentrations for long-term storage.

• Preserves HRP activity: No significant loss of HRP activity over a six-month period at room temperature (1:1000 dilution) or 12 months at 4 °C
• Convenient: Store ready-to-use dilutions (1:1000 to 1:100,000) that maintain enzyme activity in the refrigerator—no aliquoting or freezing
• Assay compatible: Simply add blocking buffer to create the ideal diluent for your HRP-based ELISA system or store the HRP conjugate as a 1:1000 stock solution for Western blots and dilute in the final assay buffer
• Saves money: Less expensive than competitor formulations or ordering new HRP conjugates

With Guardian Peroxidase Conjugate Stabilizer/Diluent, typical 1 mg/mL antibody or streptavidin peroxidase conjugates can be diluted as much as 100,000-fold for storage at 4 °C. Most ELISA and blotting applications for HRP conjugates require dilution of typical 1 mg/mL stocks by at least 1000-fold (to 1 µg/mL). Sensitive assay systems, such as with chemiluminescent substrates, often require dilution up to 100,000-fold (10 ng/mL). For blotting applications, it is usually best to prepare a concentration for storage that can be diluted 10-fold in assay buffer (which may contain blocking components) for final use.