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Chromogenic Kits

Learn more about our Chromogenic Kits.

Phospholipid Emulsions

Our highly stable phospholipid emulsions are suitable for use in analyses related to procoagulant and anticoagulant pathways.


Buffers and BSA

Our buffers are thoroughly validated for use in Hemostasis research or Quality Control and contains carefully validated Bovine Serum Albumin (BSA).

Learn more about our BSA validation:

20% BSA

Liquid solution of carefully validated BSA for use as a protein stabilizing agent in buffers and other solutions.

REF B050

Liquid solution of 20% BSA (w/w). Available in packages of 6 x 20 mL.


Diluent buffers for sensitive proteins such as coagulation factors.


Tris 10% BSA - Stock Solution. Available as 50 or 100 mL.


Tris 2% BSA - Stock Solution. Available in packages of 6 x 20 mL.

Ecarin Diluent

Buffer for reconstitution and dilution of the prothrombin activating enzyme Ecarin and of the crude venom Echis Carinatus.

REF D0413

Ecarin Diluent - Working Solution. Available in packages of 6 x 20 mL.


2018-06-29 Posters at the SSC meeting in Dublin July 18-21, 2018.

Steffen Rosén and Rossix AB will present two posters at the SSC meeting in Dublin:

PB229 - Overestimation of recombinant wild type FIX potency by a one-stage method indicated from comparison with a chromogenic FXIa and TF/FVIIa based methods and through discrepant activation of rwtFIX and plasma derived FIX by plasma kallikrein.

PB238 - Underassignment of FIX potency of rFIX-Albumin fusion protein by one-stage methods demonstrated in studies on FXIa and FIXa generation. 


2016-06-22 Publication in collaboration with NovoNordisk

Rosén P, Rosén S, Ezban M, Persson E.

Overestimation of N-glycoPEGylated factor IX activity in one-stage factor IX clotting assay owing to silica-mediated premature conversion to activated factor IX.

J Thromb Haemost 2016; 14: 1420-7.


2015-04-13 Publication in collaboration with AstraZeneca

Ann Lövgren et al. Blood Coagulation and Fibrinolysis, Characterization of thrombin derived from 

human recombinant prothrombin.

Open access: click here