Product information
UNITEST Factor XI
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A chromogenic method for the determination of factor XI activity in plasma.
Test principle
FXII
Kaolin⟶
FXIIa
FXI
Factor XIIa⟶
FXIa
Kallikrein + FXIIa
Inhibitors⟶
[Kallikrein • INH] + [FXIIa • INH]
Substrate
Factor IXa⟶
Peptide + pNA
Reagents and stability (after opening)
| Reagent | Quantity | Stability / note |
|---|---|---|
| Factor XIa substrate | 1 vial | 6 months at 4°C |
| Kaolin | 1 vial | see expiry date |
| Buffer concentrate | 1 vial | see expiry date |
| Kallikrein inhibitor | 1 vial | 8 hours at 4°C |
| Corn trypsin inhibitor | 1 vial | 8 hours at 4°C |
| Standard plasma | 1 vial | 8 hours at 4°C |
| Article number |
|---|
| 0090 |