title: Simple device for the spectrophotometric assay of immobilized enzymes.
mesh_terms: D004800:Enzymes, Immobilized / Q000032:analysis*; D006735:Horseradish Peroxidase / Q000032:analysis; D013053:Spectrophotometry / Q000295:instrumentation*
chemical_list: D004800:Enzymes, Immobilized; D006735:Horseradish Peroxidase