ION-SELECTIVE ELECTRODE AND METHOD FOR SELECTIVE DETERMINATION OF ANALYTES IN BODY FLUIDS

摘要

The present invention is about ion-selective electrode for carbon dioxide and other analytes in the free carbon content measurement aqueous sample of chaff interferent. It include analyte and chaff interferent the present invention also relates to a kind of membrane structure for analysing body fluid. Electrode of the invention includes internal reference electrode (1,2), ionic liquid phase selective membrane (3) and differentiates that film (4) include that hydrophilic film has the size of mesoporous less than 0.1νm. Ionic liquid phase selective membrane is placed into closely with identification film, preferably includes film, by cellulose fibre, the fiber of regenerated celulose fibre or cellulose derivative.