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Time lag of ion exchange in the gel layer of hydrogen-ion-selective glass electrodes

✍ Scribed by Bo Karlberg

Publisher
Elsevier Science
Year
1974
Weight
299 KB
Volume
49
Category
Article
ISSN
0022-0728

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πŸ“œ SIMILAR VOLUMES

Ion-exchange properties of the gel layer
Ion-exchange properties of the gel layer of some hydrogen-ion-selective glass electrodes
✍ Bo Karlberg πŸ“‚ Article πŸ“… 1973 πŸ› Elsevier Science βš– 745 KB

The gel layer develops on an electrode glass on its first contact with water. This hydration process has been shown to involve both an ion exchange of the alkali metal ions in the bulk glass with hydrogen ions from the aqueous solution and a rupture of the silicon-oxygen bonds by reaction with water

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Some pH-responsive glass electrodes have been characterised with respect to gel layer thickness, durability and ion exchange capacity. Glasses with a low durability exhibited a thick gel layer and a high ion exchange capacity in comparison with high durability glasses. The electrochemical properties