. The examination of the urine of the horse and man . According to Frommer, even the minutestamount of acetone will give this reaction and no otherconstituent of the urine will give this color—not evendiaceticacid. The reafction is explained as follows: Onemolecule of salicylic aldehyde combines with one moleculeof acetone to form oxybenzol-acetone. This, in the pres-ence of strong alkalies, forms dioxy-dibenzol-acetone. Thealkaline salts of this compound are intensely red. Urobilin is commonly regarded as the most importantcoloring matter in the urine. There is some evidence that itrepresents
. The examination of the urine of the horse and man . According to Frommer, even the minutestamount of acetone will give this reaction and no otherconstituent of the urine will give this color—not evendiaceticacid. The reafction is explained as follows: Onemolecule of salicylic aldehyde combines with one moleculeof acetone to form oxybenzol-acetone. This, in the pres-ence of strong alkalies, forms dioxy-dibenzol-acetone. Thealkaline salts of this compound are intensely red. Urobilin is commonly regarded as the most importantcoloring matter in the urine. There is some evidence that itrepresents a reduced form of bilirubin, on^ of the pigments ofthe bile.* Urobilin is more readily obtaimed from highly coloredurines, (ffevers, etc.). Test. The ordinary test wath an alcoholic solutionof zinc may be simplified in the following manner: 10 urine are acidified with 2 drops of HCl and shaken with * A small amount of an alcoholic extract of the feces added to theurine will usuaiiy give favorable tests for urobilin. s„JXSi \>^^ >^. \NhJ\
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Keywords: ., bookcentury1900, bookdecade1910, bookidexaminat, booksubjecturine
