Description: The purified total Quail IgY can be used as a negative control for antibodies in Western blot, immunoprecipitation, and immunohistochemistry, etc. Purification: Purified by affinity chromatography. Form: Purified Quail IgY in PBS, pH 7.3, 0.01% sodium azide. Purity : Greater than 95% as determined by reducing SDS-PAGE.Directions for Use : Please minimize freeze-thaw cycles. Storage/Stability : Store it at -20°C to -80°C for one year. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.