Contributed by Paul G. Falkowski; received September 15, 2025; accepted January 7, 2026; reviewed by Barry D. Bruce and Nir Keren ...
Health Canada's Food Directorate is responsible for ensuring that chemical contaminants are not present in foods at levels that may cause adverse health effects. Ethyl carbamate was included as part ...
ASCORBIC acid has been found to have a marked inhibitory effect on urease activity. With some preparations of the enzyme, the formation of ammonia from urea is completely inhibited by a concentration ...
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§ Department of Biomedical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States ∥ Department of Chemical Engineering, University of Puerto Rico-Mayagüez, ...
Study on the disposable urea biosensors based on PVC-COOH membrane ammonium ion-selective electrodes
Abstract: A potentiometric urea biosensor is prepared by the immobilization of urease directly onto the surface of a solid-state ammonium ion-selective electrode. The enzyme is immobilized by ...
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