The best conditions for plating platinum black deposits are given. If these conditions are followed, it is rather difficult to "poison" the hydrogen electrodes in the ordinary neutralization reactions. Poisoned electrodes can be restored to give normal values if treated with concentrated nitric acid.
Proceedings of the Iowa Academy of Science
©1926 Iowa Academy of Science, Inc.
Popoff, Stephen and Kunz, A. H.
"Removal of a Common Source of Trouble in Hydrogen Ion Measurements,"
Proceedings of the Iowa Academy of Science, 33(1), 169-169.
Available at: https://scholarworks.uni.edu/pias/vol33/iss1/23