Metal ion binding product to inhibit bacterial growth for the immobilization and purification of biopolymers and the like.

摘要

Heavy metals can be fixed to solid carriers to which an a-amino- or an a-iminohydroxamate ligand has been covalently bound. The ligand can have the structural formula
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wherein R<Sub>1</Sub> and R<Sub>2</Sub> represent H or an alkyl, or may be a compound of two or more hydroxamate substituents. The carrier can be formed of polysaccharides, polygalactanes, polyacrylates or silica dioxide. The adsorbent is prepared by an a-aminohydroxamate in an aqueous solution having a pH value of 4-9 being brought into contact with an aldehyde derivative of a carrier, followed by reduction with sodium- borohydride or sodiumcyanoborohydride.