A salt or ester of picric acid.Explosives based on ammonium picrate and picric acid were also used by the military....
The survey allowed participants to categorize the alkaline picrate reaction into methods with or without use of Lloyd pretreatment, kinetic methods, and rate-blanked kinetic methods.
Creatinine was measured in all urine samples by a colorimetric assay, using an alkaline picrate method.