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US 4,379,847 AGranted
Suspending medium for immunologic reactions
AssigneeAmerican Hospital Supply Corporation
InventorsMitchell J. Fruitstone, Michele M. Tilly, Betty G. Pixton
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Abstract
A low ionic strength suspending medium for immunologic reactions which includes a salt solution, a buffer, gelatin, albumin, and an organic solute to control osmolality.
Claims28
A suspending medium for an immunologic reaction comprising gelatin, having a Bloom rating from about 75 to about 300 at a concentration such that the Bloom rating times concentration in weight percent is from about 40 to about 150;
- albumin, at a concentration of from about 3.0 wt. % to about 7.0 wt. %;
- sufficient organic solute to provide an osmolality of from about 150 mOsm/kg. H.sub.2 O to about 450 mOsm/kg. H.sub.2 O;
- sufficient salt of an alkali or alkaline earth metal to provide an ionic strength equivalent to about a 0.01 molar to about a 0.10 molar solution of sodium chloride;
- and a pH from about 6.0 to about 8.0.
1 more element
Dependencies are inferred from the claim text.