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April 4, 1914, Vol LXII, No. 14 >
ARTICLE | April 4, 1914

FURTHER SIMPLIFICATION OF QUANTITATIVE DETERMINATION OF CHLORIDS IN THE URINE

FRANKLIN C. McLEAN, M.S., M.D.; LAURENCE SELLING, A.B., M.D.
JAMA. 1914;LXII(14):1081-1082. doi:10.1001/jama.1914.02560390021008.
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ABSTRACT

Recently Bayne-Jones1 has published a simplified method for the determination of the total chlorids in the urine, the only apparatus necessary being a stoppered graduated cylinder. His method is an adaptation of the method of Strauss,2 and does away with the necessity of a specially made and graduated chloridometer. The method depends on the precipitation of the chlorids with a tenth-normal silver nitrate solution containing nitric acid, and ferric ammonium sulphate as an indicator, and titrating back the excess of silver nitrate with a twentieth-normal solution of ammonium sulphocyanate, the whole process being carried out in a stoppered graduated cylinder, and the amount of the chlorids being determined from the amount of fluid in the cylinder at the end of the process, with the aid of a special table computed for that purpose. Bayne-Jones has shown the accuracy of the method, when compared with the Lüttke-Martius modification of

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