The FITC and PE conjugates are each supplied in 1.0 mL of PBS. The APC conjugate is supplied in 0.5 mL of PBS. Buffered saline contains gelatin and 0.1% sodium azide. Please refer to the vial label for antibody concentration. The vial should be stored at 2° to 8°C. Conjugated forms should not be frozen and should be protected from prolonged exposure to light. Each reagent is stable for the period shown on the bottle label when stored as directed.