THE VALIDITY OF THE GLASS ELECTRODE IN AMMONIUM CHLORIDE BUFFERS

Open Access

20 July 1929

journal article
research article
Published by Rockefeller University Press in The Journal of general physiology

Vol. 12 (6) , 813-819
https://doi.org/10.1085/jgp.12.6.813

Abstract

It is shown that the glass electrode may be used without appreciable error to measure pH of ammonia or ammonium chloride buffers, but that corrections must be applied above pH 8.6 if sodium ions are present in the unknown solution. Corrections are given for values from pH 8.6 to 9.4. A slight further modification of form of glass electrode used by previous workers is described.