Patent ID: 8557194

Claim:
A process for producing a carrier comprising a base plate, a polymeric film formed on the base plate, and a chelating agent bound to the polymeric film, said process comprising steps of: forming the polymeric film that includes a thin hydrophilic film constituted by a hydrophilic polymer, the hydrophilic polymer having a molecular weight within a range from 10000 to 2000000, on the base plate by reacting the hydrophilic polymer with the base plate in the state of a thin film; and reacting the chelating agent and a base additive with the thin hydrophilic film in an organic solvent in order to cause the chelating agent to bind to the polymeric film, wherein said chelating agent is one or more selected from the group consisting of a nitrilotriacetic acid compound, iminodiacetic acid compound phenanthroline compound, terpyridine compound, bipyridine compound, triethylenetetramine compound, diethylenetriamine compound, tris(carboxymethyl)ethylenediamine compound, diethylenetriaminepentaacetic acid compound, polypyrazolylboric acid compound, 1,4,7-triazocyclononane compound, and dimethylglyoxime compound.