Cfte 



Journal of Pbartnacolodv, 



Devoted to the Advances Made in Materia Medica in its Branches. 



Pharmacy, Pharmacognosy^ Chemistry, Botany, Pharmaco- 



Dynamics, Therapeutics and Toxicology. 



Published for the Alunini Association of the College of Pharmacy of the City of New York, 

 by The New Era Printing Company, 41 North Queen St., Lancaster, Pa. 



Vol.. VII. 



SEPTENIBKR., 1900. 



No. 9. 



Urine Analysis by the Pharmacist. 



By George C. Diekman, Ph.G., M.D. 



LIBRARY 



NEW YORK 



BOTANICAL 



GARDEN. 



( Continued from July Number. ) 



PART FIFTEEN. 



Quantitative Determination of Uric Acid. {Continued.) 

 2. Method of Sal kozvski-Liidwig. 



By this method the Uric Acid is precipitated in the form of a silver-mag- 

 nesium salt. From this it is again liberated, and then weighed. 



If albumin is present it must be first removed. 

 Solutions regit i red : 



(a) Ammoniacal solution of silver nitrate : 26 grammes of silver nitrate 

 are placed in a liter flask, and dissolved in distilled water. Ammonium 

 hydrate, in excess, is then added until the precipitate which first forms is 

 redissolved. Then add distilled water enough to make i liter. 



(d) Magnesia mixture : 100 grammes of crystallized magnesium chloride 

 are placed in a liter flask and dissolved in distilled water. Ammonium 

 hydrate is then added until its odor predominates, after which enough cold 

 saturated solution of ammonium chloride is added to redissolve the pre- 

 cipitate of magnesium hydrate which first forms. Eastly add enough dis- 

 tilled water to make i liter. 



