A Comparison of Methods for Determining the Hydrogen-Ion Concentration of Soils.

Abstract

1. The antimony oxide electrode has been applied in a simple form to measure thepH value of soils.2. ThepH values of representative Australian soils have been determined by means of the hydrogen, quinhydrone and antimony oxide electrodes and the results compared.3. The limitations of the quinhydrone electrode have been investigated and their nature elucidated, special attention being paid to alkaline and manganiferous soils.