The discrimination of phenotypes for rate of disappearance of isonicotinoyl hydrazide from serum

Abstract

A C T Expression of the rate of inactivation of isonicotinoyl hydrazide (INH) as a first-order constant gave better discrimination of slow and rapid inactivators than did the level of INH at the end of 6 hr. The most probable division point between the two classes was at k =0.130.