Carbon Paste Electrode

Carbon Paste Electrode

A carbon-paste electrode (CPE) is made from a mixture of conducting graphite powder and a pasting liquid. These electrodes are simple to make and offer an easily renewable surface for electron exchange. Carbon paste electrodes belong to a special group of heterogeneous carbon electrodes. These electrodes are widely used mainly for voltammetric measurements; however, carbon paste-based sensors are also applicable in coulometry (both amperometry and potentiometry).

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Carbon Paste Electrode - Disadvantages
... which limits their applicability in practical analysis, is that success in working with carbon paste-based electrodes depends on the experience of the user ... While this is true for any type of solid electrodes, CPEs are rather an exceptional case ... In contrast to commercially available solid electrodes for which basic electrochemical characteristics are comparable for almost all products from each manufacturer, each carbon paste ...

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    In a thousand apparently humble ways men busy themselves to make some right take the place of some wrong,—if it is only to make a better paste blacking,—and they are themselves so much the better morally for it.
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