Thrombin prepared from a prothrombin complex concentrate extracted from bovine plasma and fully activated in a purified system. Purified by ion exchange chromatography and stabilised. Highly purified preparation, mainly in the alpha form, with a specific activity of more than = 1,500 NIH/mg. Thrombin activity is reported in harmonized NIH or IU or USP units by reference to the WHO/NIBSC International Standard for Human Thrombin (01/580); (refer to "A reunification of the US ("NIH") and International Unit into a single standard for Thrombin", Longstaff et al, Thromb Haemost 2005, 93:261-6)). NIH is a clotting unit for thrombin activity. Stabilised and lyophilised bovine Thrombin. For research use only.
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