Endotoxin was removed by membrane affinity chromatography. Macropore cellulose membrane was prepared from filter paper by alkaline treatment and chemical crosslinking, and was used as stationary phase for affinity chromatography. The matrix membrane was derived by hexamethylenediamine and activated by glutaraldehyde before histidine was immobilized as affinity ligand. A membrane cartridge containing 40 sheets of affinity membrane was also prepared, which can be used to remove pyrogen from aqueous solutions.
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Univ Fed Rio de Janeiro, Ctr Technol, Chem Engn Program, Rio De Janeiro, RJ, BrazilUniv Fed Rio de Janeiro, Ctr Technol, Chem Engn Program, Rio De Janeiro, RJ, Brazil
de Almeida, Karina Moita
Almeida, Maiara Maciel
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Univ Fed Rio de Janeiro, Ctr Technol, Chem Engn Program, Rio De Janeiro, RJ, BrazilUniv Fed Rio de Janeiro, Ctr Technol, Chem Engn Program, Rio De Janeiro, RJ, Brazil
Almeida, Maiara Maciel
Fingola, Fernando Faria
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INCQS FIOCRUZ, Oswaldo Cruz Fdn, Natl Inst Qual Control Hlth, Rio De Janeiro, RJ, BrazilUniv Fed Rio de Janeiro, Ctr Technol, Chem Engn Program, Rio De Janeiro, RJ, Brazil
Fingola, Fernando Faria
Ferraz, Helen Conceicao
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Univ Fed Rio de Janeiro, Ctr Technol, Chem Engn Program, Rio De Janeiro, RJ, BrazilUniv Fed Rio de Janeiro, Ctr Technol, Chem Engn Program, Rio De Janeiro, RJ, Brazil