Reagent for detecting or absorbing oxygen comprises a metal complex covalently bound to a solid support, where the complex changes color as a function of the degree of oxidation of the metal

摘要

Reagent for detecting or absorbing oxygen comprises a metal complex covalently bound to the surface of a solid support, where the complex changes color as a function of the degree of oxidation of the metal. Independent claims are also included for: (1) producing a reagent as above by activating an inorganic support by immersion in an acid solution, washing and air drying; grafting a trialkoxysilane-functional organic chain onto the support by immersion in an ethanol solution at room temperature; synthesizing a ligand in situ by adding a "molecular condensation entity" to the organic chain; and coordinating a metal compound to the ligand by immersion in an ethanol solution at room temperature under an inert atmosphere; (2) oxygen detecting or absorbing device comprising a reagent as above.