[Penicillin-selective electrode based on a cellulose membrane with immobilized enzyme].

Modified cellulose films are recommended to be used as carriers in preparing enzymatic membranes for penicillin-selective electrodes. The results of laboratory testing of the enzymatic penicillin-selective electrode based on the cellulose membrane with immobilized penicillinase are presented. In principle it was shown possible to use the enzymatic electrode in determining penicillin concentration in solutions.