Test for creatinine by Jaffe’s reaction is a specific test used to determine creatinine level in urine and blood. Max Jaffe first was the first who described its basic principle. He said the colour changes was directly proportional to the concentration of creatinine. Reagents: Saturated picric acid. 5% NaOH Procedure: Take 3 ml of urine in a test tube. Add 1 … [Read more...]