Applications of enzyme-catalysed reactions in trace analysis-VI Determination of mercury and silver by their inhibition of yeast alcohol dehydrogenase.

The inhibition of yeast alcohol dehydrogenase is applied to the determination of 2-200 ng of mercury(II) and 1-100 ng of silver. The enzyme, when used to catalyse the oxidation of ethanol, or the reverse reaction, is equally sensitive to inhibitors.