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Factor IX
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Chromogenic method for determination of factor IX activity in FIX preparations and concentrates.
Test principle
Factor X
FIX, FVIII, FXIa, CaCl₂, Phospholipid⟶
Factor Xa
FXa-substrate
Factor Xa⟶
Peptide + pNA
Reagents and stability (after opening)
| Reagent | Quantity | Stability / note |
|---|---|---|
| Reagent A: FVIII, FX | 2 vials | 24 hours at 2-8°C 8 hours at RT |
| Reagent B: FXIa, PL, CaCl₂ | 2 vials | 24 hours at 2-8°C 8 hours at RT |
| FXa-substrate | 1 vial | 1 month at 2-8°C |
| FIX diluent buffer | 1 vial | 1 month at 2-8°C |
| Number of determinations | Article number |
|---|---|
| 100 | 900020 |