Rapid Covalent Method for Fabrication of Optical pH Sensitive Membranes

ABSTRACT

A new method for covalent immobilization of pH indicators was developed.

Indicators, containing amino groups, are immobilized covalently on transparent hydrolyzed acetydot]lcellulose membranes. All the steps were performed at ambient temperature. The method was rapid and allows for preparation of the final membranes within one day.