Peroxidase, Horseradish (HRP)

May be stored at 4 degree C for short-term only. For long-term storage, store at -20 degree C. Aliquots are stable for at least 12 months at -20 degree C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.

Assay by immunoelectrophoresis resulted in a single precipitin arc against purified and partially purified horseradish peroxidase (HRP). Crossreactivity against peroxidase from other tissues and species may occur.