| Yvon's test | 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 colour; 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. (05 Mar 2000) |
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| Yvon, Paul | Paul, French physician and chemist, 1848-1913. See: Yvon's test. (05 Mar 2000) |
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