Special dilution buffer reducing Heparin Interferences for anti-Xa chromogenic assays, especially using BIOPHEN™ DiXaI kit (A221030-RUO,) or BIOPHEN™ Heparin LRT kits (A221011-RUO / A221013-RUO / A221015-RUO). This kit is for research use only and should not be used for patient diagnosis or treatment.