The bilayer lipid membrane as a basis for a selective sensor for ammonia |
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| Authors: | Thompson M Krull U J Bendell-Young L I |
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| Affiliation: | Department of Chemistry, University of Toronto, 80 St. George St., Toronto, Ontario, Canada |
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| Abstract: | 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. |
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