| 摘要 |
<p>The present invention encompasses a stabilized platelet factor 4 immunoassay standard comprising an aqueous solution containing 10 to 100 ng/ml of platelet factor 4, carrier protein, and an effective stabilizing amount of heparin, as well as 125I labeled platelet factor 4 reagent stabilized in the same manner. These reagents are useful for testing blood plasma for activation of the coagulation system.</p> |
