Chrono-log offers a complete line of highly concentrated platelet aggregation reagents, requiring only micro-portions per test. The standard aggregation reagents: Thrombin, ADP, Collagen, Ristocetin, Epinephrine and Arachidonic Acid are available, as well as CHRONO-LUME and ATP Standard reagents for determination of dense granule release when performing Lumi Aggregation. Please review this year-long study which confirmed the exceptional stability of Chrono-log aggregation reagents. CHRONO-PAR Reagents are validated for use in both Whole Blood and PRP samples.®®

For use in the quantitative determination of Factor VIII Ristocetin Cofactor Activity in citrated plasma. The following Materials included provide volumes sufficient to run 15 determinations: Ristocetin,7.5 mg/vial; Lyophilized Human Platelets, 6 mL; von Willebrand Reference Plasma, Normal, 1.0 mL; von Willebrand Reference Plasma, Deficient, 0.5 mL; Tris Buffered Saline (TBA) 12 mL.