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Medical Term:

Yvon test

Pronunciation: e'von[h]


  1. for alkaloids; to the suspected solution is added a mixture of bismuth subnitrate, potassium iodide, and hydrochloric acid in water; a positive reaction is indicated by the appearance of a red color;
  2. for acetanilid in the urine; the suspected fluid is extracted with chloroform and heated with yellow nitrate of mercury; if acetanilid is present, the fluid will be green.
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