“…The fluorescence and phosphorescence characteristics of 12 phenyl substituted silanes have been determined and their fluorometric assay is discussed (443). A method for de-termination of the iodide ion is based on the quenching of the fluorescence of uranylacetate in sodium hydroxide solution (93). A fluorometric method for the determination of ammonia depends on its reaction with 2-oxoglutarate, water, and NADH2 in the presence of an enzyme, glutamate dehydrogenase to form NAD with a decrease in fluorescence (547).…”