calomel electrode


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calomel electrode

[′kal·ə·məl i′lek‚trōd]
(physical chemistry)
A reference electrode of known potential consisting of mercury, mercury chloride (calomel), and potassium chloride solution; used to measure pH and electromotive force. Also known as calomel half-cell; calomel reference electrode.
References in periodicals archive ?
A three-electrode cell was used for electrochemical measurement which consists of coated substrate, platinum sheet, and saturated calomel electrode (SCE) as working electrode, counter electrode, and reference electrode, respectively, and 3.5 wt.% NaCl solution was used as corrosive electrolyte.
A conventional three electrode cell was employed throughout the experiments, with bare or cadmium oxide nanoparticles modified carbon paste electrode (3.0 mm diameter) as a working electrode, and all potentials reported here were referred to this electrode, a saturated calomel electrode (SCE) as a reference electrode which all potentials were reported with respect to this reference, and a platinum electrode as a counter electrode.
A conventional three-electrode system was used for DC polarization measurements: the sample as a working electrode with an exposed area of 1 [cm.sup.2], a piece of platinum sheet as a counter electrode, and the saturated calomel electrode as a reference electrode.
The Reference Electrode was Standard Calomel Electrode (SCE) and the Auxiliary Electrodes were Platinum.
In this electrochemical 3-electrodes system, the embedded rebar acts as working electrode, stainless steel plate acts as counter electrode and the saturated calomel electrode acts as reference electrode.
The values of potentials passed originally with regard to the saturated calomel electrode were in reference to the saturated silver-silver chloride electrode applied in research.
a saturated calomel electrode in a pH 12 sodium hydroxide solution.
The electrochemical cell of 500 ml capacity fitted with saturated calomel electrode (SCE) as reference electrode, platinum foil as auxillary electrode and 316L SS as working electrode was used for all measurements.
In the second step, the ethylene glycol-passivated MWNT NEA is electrochemically etched at 1.5 V (vs saturated calomel electrode) for ~120 s in 1.0 mol/L NaOH, which selectively removes the molecules attached to MWNT during the passivation step.
Glassy carbon electrode (GC, PINE Company, part # AFE1XFP030GCR) with surface area 0.071cm 2, saturated calomel electrode (SCE), (Fisher scientific company cat # 1363951) and Beckmann platinum wire of 1mm diameter, were used as working, reference electrode and counter electrodes, respectively.