ID-Diluent 1 is a modified Bromelin solution in which the enzyme activity is stabilized for a long period and specially prepared for the ID-System. ID-Diluent 1 is used for preparing suspensions of red cells for blood grouping and as a additive for enzyme tests with untreated red cells for antibody detection and crossmatching.

ID-Diluent 2 is a modified, low-ionic strength solution made for the ID-System. It is used for preparing 5% red cell suspensions for blood grouping as well as 0.8% red cell suspensions for crossmatching, autocontrol, direct anti-human globulin test, blood grouping of newborns and test cells prepared in the laboratory.

ID-Papain is a standardized liquid papain solution that may be used for pre-treating red cells by laboratories that prepare their own red cell reagents, or may be used as an enzyme additive reagent in a one stage technique.
•Stability: 7 weeks, shipment on standing order every 4 weeks

ID-CellStab is a specially formulated, glycine buffered saline which stabilizes red cells at 0.8% concentration for use in the ID-System for up to 4 weeks after preparation.

When required, red cells can be papainized by the blood group laboratory, using ID-Papain, a standardized liquid papain solution. After treatment of the red cells with papain, the cells must be washed with the specially prepared ID-CellWash-P.

Bio-Rad offers two special buffers for easy freezing and thawing of red cells, allowing the preservation of interesting antigen configurations so that the laboratory has rare red cells available at any time.

Bio-Rad offers two special buffers for easy freezing and thawing of red cells, allowing the preservation of interesting antigen configurations so that the laboratory has rare red cells available at any time.