Drug – bio-affecting and body treating compositions – Antigen – epitope – or other immunospecific immunoeffector – Bacterium or component thereof or substance produced by said...
Patent
1981-12-21
1984-06-19
Goldberg, Jerome D.
Drug, bio-affecting and body treating compositions
Antigen, epitope, or other immunospecific immunoeffector
Bacterium or component thereof or substance produced by said...
544 30, 544 16, A61K 3154
Patent
active
044553064
ABSTRACT:
The present invention relates to a method for concentrating a dilute aqueous solution of a .beta.-lactam antibiotic which is readily susceptible to heat, by subjecting a dilute aqueous solution of a .beta.-lactam antibiotic, said solution containing 2 to 20% (v/v) of a lower alcohol, to concentration by means of a permeable membrane made of poly(ether/amide) or polybenzimidazolone.
REFERENCES:
Matsuura et al., Physio Chem. Criteria for Reverse Osmosis . . . Membranes, J. Appl. Poly. Sci. 15:2905-2927.
Katamoto Kazuyoshi
Nara Kiyoshi
Ohkido Sadao
Yamamoto Isao
Yanome Hiroshi
Goldberg Jerome D.
Rollins John
Takeda Chemical Industries Ltd.
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