DISCONTINUED ‐ REPLACEMENT: Hart Biologicals Collagen (HB‐5503‐FG)


Multiplate® COLtest is a reagent kit used for collagen induced aggregation in research of platelet aggregation studies for the evaluation of normal platelet function on the Multiplate® Analyzer. Sensitive to a cyclooxygenase inhibition, GpIIb/IIIa antagonists and deficiency of GpIIb/IIIa receptors. For the research of qualitative platelet function inhibition.

Please note the catalog # for Multiplate® COLtest Kit has changed to 08115842001. You may have previously ordered this product under catalog#s MP0230, 06675832190, 08115842001D or DPGAG005K.

COLtest (collagen) for platelet aggregation studiesReagents, Composition, Storage and Stability

  • 08115842001: Multiplate® COLtest reagent, Kit, 3 x 1.0 mL. 150 tests. Reagent is stable until the expiration date printed on the vial label when stored at 2-8°C. Stable 7 days after reconstitution. Do not freeze the reconstituted reagent.

Also available

  • 06675697190Multiplate® COLtest Aliquot Vials, Box, 100 color coded (white) micro test tubes.

No longer available

  • MP0193: Multiplate® COLtest reagent, Kit, 1 x 1.0 mL. 50 tests
  • MP0130: Multiplate® COLtest reagent, Bag, 1 x 1.0 mL, 5 color coded (white) micro test tubes for aliquotation. 50 tests.

The COLtest leads to platelet activation via the platelet collagen receptor. For suitable platelet activation, the release of endogenous arachidonic acid from the platelet phospholipids is necessary. The arachidonic acid is then transformed to the platelet agonist thromboxane A2 (TXA2) by the enzyme cyclooxygenase. Cyclooxygenase is blocked by Aspirin®. Therefore, the COLtest is sensitive to Aspirin® action. This mechanism also explains why the COLtest is less specific towards the action of Aspirin® as compared to the ASPItest. In the ASPItest, a defined amount of arachidonic acid is used as the activator. However, in COLtest, platelets are activated through endogenous TXA2 and other TXA2 independent mechanisms.

Platelet Function Testing Assay Reagent Collagen COL test for platelet aggregation studies