Gmelin's test

variants: or Gmelin's reaction

Definition of Gmelin's test 

: a test for bile pigments (as in the urine) that is made by carefully mixing the solution to be tested with nitric acid containing some nitrous acid and that shows a positive result when a series of colors appears at the juncture of the solution and the acid

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History and Etymology for Gmelin's test

after Leopold Gmelin †1853 German chemist

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