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Human Sera
Human serum is manufactured from plasma by addition of calcium chloride. This results in clotting of the plasma. After removing the clot, the serum is washed and concentrated by ultra-filtration and finally filtered through a combination of depth- and membrane- filters.
Off - the - clot serum is prepared from human whole blood collected without anti-coagulant, allowed to clot at room temperature and then centrifuged to remove the clot. Off - the - clot serum is filtered though depth- and membrane- filters.
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