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Medical Definition of Dinitrophenylhydrazine test
1. A screening test for maple syrup urine disease; the addition of 2,4-dinitrophenylhydrazine in HCl to urine gives a chalky white precipitate in the presence of ketoacids. (05 Mar 2000)
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1. A screening test for maple syrup urine disease; the addition of 2,4-dinitrophenylhydrazine in HCl to urine gives a chalky white precipitate in the presence of ketoacids. (05 Mar 2000)