glass electrode


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glass e·lec·trode

a thin-walled glass bulb containing a standard buffer solution, quinhydrone, and a platinum wire; when immersed in an unknown solution, a potential difference develops that varies with the pH of the unknown solution; this difference can be made to give the pH; used in pH meters.

glass electrode

In chemistry, a chemical sensor that uses a glass membrane as the sensing surface, as opposed to one that uses an organic or solid-state membrane. The glass contains materials in its structure that are sensitive to a material that is to be measured. In the case of a pH glass electrode, lithium ions are commonly used
See also: electrode
References in periodicals archive ?
The C 1s high-resolution XPS spectra of the conjugated phenylene polymer-modified ITO glass electrode prepared by electrochemical polymerization are shown in Figure 7.
The angular coefficient (slope) of the glass electrode response was determined in the same conditions of the work (ionic strength and THF percentage), being aliquots of 20.0 mL of 0.10 mol [L.sup.-1] HCl[O.sub.4] titrated with a 0.50 mol [L.sup.-1] NaOH standard solution.
The pH measurements of the buffer solution used as supporting electrolyte were performed in a combined glass electrode (ION, model pHB - 500) connected to a digital pH meter (Elektron, model E65-1).
Hunt, "Liquid glass electrodes for nanofluidics," Nature Nanotechnology, vol.
Rugged non-glass IntelliProbes bring faster, safer and more reliable pH measurements to standard glass electrode pH meters.
Model 6350 is designed for maximum flexibility, whether working at an industrial site, or working with a glass electrode in a lab.