Process for removing detergents from virus-antigen suspensions
AssigneeBehringwerke Aktiengesellschaft
InventorsEdgar Reichert, Mirko Majer
Life of this patent
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Abstract
A method for isolating a detergent-free virus-antigen from a suspension of said virus-antigen containing detergent, which method comprises precipitating said virus-antigen by adding a polyethylene glycol to said suspension and then isolating the detergent-free virus-antigen precipitate by sedimentation, said detergent remaining in said suspension.
Claims8
A method for isolating a detergent-free virus-antigen of an influenza virus, of a para-influenza virus, or of a rhabdo virus, from a suspension of said virus-antigen containing detergent, which method comprises precipitating said virus-antigen by adding 6 to 18 percent of polyethylene glycol having a molecular weight between 1000 and 40000 to said suspension and then isolating the detergent-free virus-antigen precipitate by sedimentation, said detergent remaining in said suspension.
A method for isolating a virus-antigen of an influenza virus from a suspension of said virus-antigen containing nonylphenoxypolyethoxyethanol as a detergent, which method comprises precipitating said virus-antigen by adding 6 to 18 percent of polyethylene glycol having a molecular weight of about 6000 to said suspension and then isolating the detergent-free virus-antigen precipitate by sedimentation, said detergent remaining in said suspension.
Dependencies are inferred from the claim text.