TESTS 



1487 



TESTS 



TABLE OF TESTS.— Continued. 



Name. 



Use. 



MacMunn's test. 



MacWilliams' test. 



Indigo in urine. 



Albumin. 



Reagents. 



Reaction. 



Application. 



Remarks. 



(a) Hydrochloric acid. 

 (b) Nitric acid, (c) 

 Chloroform. 



c becomes violet, 

 and shows ab- 

 sorption -bands 

 before and after 

 D., due to indigo- 

 blue. 



Sat. sol. salicyl-sul- \ Cloudiness or ppt. 

 phonic acid. 



Magnesia-mixture- 



1 



Phosphates in Magnes. sulphate, am- Precipitate, 

 urine. mon. chlorid, am- 



monia, each i, wa- 

 ter 8. 



Boil equal parts urine 

 and a, and a few 

 drops b; cool, and 

 agitate with c. 



Mix drop or two of R. 

 with 20C.C. of liquid. 



Add R. to urine. 



If ppt. thick, phos- 

 ' phates increased ; 

 I if milky, normal ; 

 if translucent, di- 

 minished. 



Magnesium' 

 nitric-test. 



Albumin in urine. See Roberts' test. 



Magnesium - s u 1 - Paraglobulin 

 phate-test. urine. 



in Magnes. sulphate. Precipitate. 



Saturate urine with 

 R. ; remove para- 

 globulin by filtration 



Magnier de la Uric acid. 

 Source's test. 



(a) Bromin water, (b) Brick-red color ; 

 Sol. potass, hydrate. blue with b; 

 (c) Ammon. hydrate. purple with c. 



Rub up sediment with 

 water, add a. evapo- 

 rate. Add b or c. 



r 



med's test. Small quantities of (a) Tr. guaiaci. (b) Blue color, 

 hemoglobin in \ Ozonic ether, 

 urine, unac- 



companied 

 albumin. 



by 



Dip slip blotting-paper 

 in urine ; dry over 

 spirit-lamp ; drop on 

 2 drops a, and after 

 alcohol has evapo- 

 rated, a drop of b. j 



Mary's test. 



Free hydrochloric Sol. methylene-blue. 

 acid in gastric 

 juice. 



[ Change from violet I Add R. 

 to blue or green. | 



Marechal's test. 



Bile-pigments 

 urine. 



Tr. iodi. 



irsh's test. 



Arsenic. 



Delicate green . Float a few drops of 

 color at line of i urine on surface of 

 contact. R. in test-tube. 



Dilute urine if very 

 dark. 



(a) Dil. sulphuric acid, j Steel-white mirror 

 (*) Zinc. of metallic' 



Introduce substance Distinguished from 



into flask wii ha and | similar deposit 



b. Light jet and I of antimony by 



permit to impinge on : solubility of 



cold porcelain, or arsenical mirror 



heat delivery-tube, in potassium hy- 



when mirror is de- pochlorite. 

 posited in it. 



Peptones in urine. 



(a) Ammonium sul- ; Rose-red color, 

 phate. ( A ) Sol. cop- 

 per sulphate. (c) 

 Sodium hydrate. 



Precipitate proteids 

 with a; filter; to 

 filtrate add b and 

 considerable c. 



chke's test. 



Nitrous acid in 

 potable water. 



(a) Dil. acetic acid. ! Bluish color dis- ', Add 6 to io drops a, 

 (b) Blue molybdic- appears within i then i or 2 drops b. 

 acid-solution. one hour. 



Biliary coloring 

 matter. 



(a) Sulphuric acid. 

 (b) Potass, nitrite. 



Grass- green color. 



To 2 c.c. urine add 2 

 or 3 drops a and 

 crystal of b. 



Not very delicate. 



»6's test A. ' Glucose. 



Stannous chlorid. 



Black-brown "car- 

 amel "-like ppt. 



Heat glucose-sol. with 

 R. 



tie's test B. Glucose. 



Strips of woolen 

 soaked in 33J per 

 cent. sol. of stannous 

 chlorid. and dried. 



Strip turns brown Boil strip in glucose- 

 to blackish-, solution, 

 brown. 



r's reagent or 



Alkaloids. 



ira's test. 



Glucose in urine. 



HgCli 13.546, potass. 

 1 o d i d 49.8, water. 

 1000. 



White ppt. 



(a) Nickel chlorid. <*) Green ppt. 

 Sol. potass, hydrate j 



Add R. 



Heat urine with a and 

 a little b. 



•lehu's test. 



Albumin in urine. 



(a) Nitric acid, (b) 

 Carbol. and acetic 

 acids each 1, 90 per 

 cent, alcohol 2. 



Precipitate. 



Treat urine with 2-3 Not very reliable; 

 per cent, of its vol. normal urine 

 of a, add 10 per cent. ' may give ppt. 

 b ; shake and allow 

 to stand. 



ienthol-test. 



Glucose in urine. Used like Thymol in 



MoNsch's test, q. v. 



