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A glass electrode is a type of ion-selective electrode made of a doped glass membrane that is sensitive to a specific ion. The most common application of ion-selective glass electrodes is for the measurement of pH. The pH electrode is an example of a glass electrode that is sensitive to hydrogen ions.
Portrait of Werner Ingold. Werner Ingold (20 February 1919 – 24 June 1995) was a Swiss chemist and entrepreneur. He was a pioneer in the field of chemical microanalysis, in particular in the development of glass-based, highly resistive pH electrodes.
In 1992, the company was incorporated as Mettler Toledo, Inc. [8] In 1996–97, Mettler Toledo, Inc. was sold by Ciba-Geigy AG to the New York-based AEA Investors Inc., in preparation for a subsequent initial public offering. The initial public offering was completed and began trading on the New York Stock Exchange, under the ticker symbol NYSE ...
It is agreed that the main mechanisms are based on desorption induced regeneration as electrochemical effects are confined to the surface of the porous carbons so cannot be responsible for bulk regeneration. [3] [6] The performance of different regeneration methods can be directly compared using the regeneration efficiency. This is defined as:
An RDE cannot be used to observe the behavior of the electrode reaction products, since they are continually swept away from the electrode. However, the rotating ring-disk electrode is well suited to investigate this further reactivity. The peak current in a cyclic voltammogram for an RDE is a plateau like region, governed by the Levich ...
Most electrodes work over a limited range of conditions, such as pH or temperature, outside of this range the electrodes behavior becomes unpredictable. The advantage of a pseudo-reference electrode is that the resulting variation is factored into the system allowing researchers to accurately study systems over a wide range of conditions.
The antimony electrode has been investigated for its ability to function as a pH electrode. [1] The electrode is made of elemental antimony. The electrochemical process can be formulated as Sb 2 O 3 (s) + 6 H + + 6 e − ⇌ 2Sb(s) + 3H 2 O. The oxide, Sb 2 O 3, is present on the surface of the electrode. Although this electrode does not give ...
A platinum wire electrode is immersed in a saturated aqueous solution of quinhydrone, in which there is the following equilibrium C 6 H 6 O 2 ⇌ C 6 H 4 O 2 + 2H + +2e −. The potential difference between the platinum electrode and a reference electrode is dependent on the activity, +, of hydrogen ions in the solution.