Electrochemical Instrumentation

Application Notes on Electrochemical Instrumentation

Potentiostats

Some of the notes below cover potentiostats in general and others are for Gamry Instruments systems specifically.  Click on a link below to download the PDF version of the Application or Technical Note.

Complete List Electrochemical Instrumentation Application Notes »

Rapid Biphasic Pulsing

Posted by gamry on February 1, 2019

What factors limit the speed of pulsing for your potentiostat?

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Cable-Capacitance Correction

Posted by gamry on December 18, 2018

The individual conductors in the cell cable of the potentiostat are made up of coaxial cables. The outer conductor in a coaxial cable is used to shield the signal of interest

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The Faraday Cage: What Is It? How Does It Work?

Posted by gamry on December 17, 2018

In Faraday’s studies and experiments regarding charge, magnetism, and their interaction, he found that charge on a conductor only resided on the outer surface.

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Introduction to the EIS Box

Posted by Susan Shultz on December 4, 2018

eis box introThe EIS Box is a value-oriented, research-grade electrochemical instrument packaged in a small case. It is designed for battery-testing via electrochemical impedance spectroscopy up to eight cells.

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The Risks of Using Additional Cabling

Posted by gamry on November 13, 2018

Cell cables are an integral part of your potentiostat and can have a large effect on full measurement capabilities of the complete system.

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Rotational Speed of Rotating Disk Electrodes

Posted by gamry on October 2, 2018

Since the mid-20th century, rotating disk electrodes (RDEs) have been used to provide a steady stream of reactants “uniformly accessible” to the surface of a disk.

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Calibration of Your Potentiostat

Posted by gamry on September 6, 2018

All scientific instruments must be calibrated in order to ensure proper function and accurate results, including potentiostats. This

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Checking the Integrity of a Gamry Cell Cable

Posted by gamry on June 26, 2018

Of all the components of a Gamry system, the cell cable is the one that is constantly being flexed and exposed to corrosive environments.

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Measurement of Small Electrochemical Signals

Posted by gamry on January 29, 2018

Potentiostats are often required to work near the limits of their measurement ability. The Gamry Instruments Reference 600 can resolve current changes. Measurements of small currents place demands on the instrument, the cell, the cables, and the experimenter. Many of the techniques used in electrochemistry of larger currents must be modified when used to measure pA and fA currents. In many cases, the basic physics of the measurement must be considered.

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Care of Porous Glass Frits

Posted by gamry on January 24, 2018

Porous glass frit is often used at the end of a reference electrode or a bridge tube to allow electrical, ionic conductivity between the bulk of the solution and the internal filling solution, while preventing large scale convective mixing of the solutions.

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