IMPROVED SUPPORT LAYER FOR ENZYME ELECTRODE LAMINATED MEMBRANES

摘要

Improved Newman type enzyme containing laminated membranes are disclosed for use in conjunction with polarographic cells to measure analyte concentration in solutions. The laminated membranes comprise a semipermeable outer, support layer including super large pores of greater than about 200 ANGSTROM in diameter. The outer layer preferably comprises pore sizes of about 380-750 ANGSTROM in diameter and has a percentage porosity of about 0.005-0.2%.