Determination of serum glucose with alkylamine glass bound glucose oxidase

Serum glucose was analyzed using glucose oxidase from Aspergillus niger immobilized to alkylamine glass (pore diameter 55 nm) by the glutaraldehyde coupling method. The minimum detection limit was 3.6 mg/100 ml sample. The recovery of added glucose was 95%. A good correlation (r = 0.808) was found between glucose values obtained by a standard commercial method and the present method.