PORTER'S TESTS
\pˈɔːtəz tˈɛsts], \pˈɔːtəz tˈɛsts], \p_ˈɔː_t_ə_z t_ˈɛ_s_t_s]\
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1. For uric acid in excess; Boil the upper strata of urine in a test-tube and add a few drops of 4 per cent. acetic acid; at the end of 3 or 4 hours the uric acid will crystallize out just below the surface of the urine. 2. For indicanuria: Shake together 10 c.c. urine, 10 c.c. hydrochloric acid, and 5 drops 0.5 per cent. solution potassium permanganate; then add 5 c.c. chloroform and shake; the presence of indican will be indicated by a purple coloration followed by a deposit of blue pigment.
By Stedman, Thomas Lathrop
Word of the day
lanesin
- Trade name of a preparation lanolin. A product analogous to lanolin, prepared from the waters used in bleaching wool. [Lat.]