ARGININE TEST (Test for Guanidine Group): Significance: Arginine test is specific for Arginine and indicates the presence of guanidine group in the arginine molecule. Reagents: Protein solution 5% sodium hydroxide 1% alcoholic α-naphthol sodium hypobromite (NaOBr) PROCEDURE: Take 1 ml of original solution (protein solution) in a test tube. Add 1 ml … [Read more...]