[Rapid determination of nitrate reductase in non-fermenting gram-negative bacteria]

Experimental study of 22 types of nonfermenting gram-negative bacteria, carried out in 317 strains, has demonstrated a high accuracy and reproducibility of the rapid (taking but 3 hrs) measurement of nitrate reductase in these bacteria by a microtest in culture medium with 0.1 percent of NaNO3 in plates; 0.2 percent solution of rivanol and 12 percent hydrochloric solution are employed as the reagents for nitrates.