The bilayer lipid membrane as a basis for a selective sensor for ammonia.
The development of an electrochemical method for the selective sensing of ammonia gas, based on a modified bilayer lipid membrane, is described. Membrane selectivity for ammonium ion is achieved through incorporation of the antibiotic nonactin as ion-carrier. The detection limits compare favourably with those for conventional ammonia gas-sensing electrodes, but the selectivity is much superior. Theoretical evaluation of the potential sensitivity of the new gas-sensor with respect to design parameters is described.
Thompson
M
M
Department of Chemistry, University of Toronto, 80 St. George St., Toronto, Ontario, Canada.
Krull
U J
UJ
Bendell-Young
L I
LI