Small Electrochemical Signals

At some point, whether you realized it or not, you have probably tried to measure an impossibly small electrochemical signal. One example is the open lead measurement using potentiostatic EIS, which tests the upper impedance limit of EIS for your potentiostat. In this case, you measure the smallest possible current difference (think femtoamperes!) resulting from an applied potential. Another example is the shorted lead measurement using galvanostatic EIS, which tests the lower impedance limit of EIS. Here, you measure the smallest possible potential difference resulting from an applied current.

What is the smallest possible signal you can measure with a potentiostat? Check out our technote linked below to learn more.

Please reach out to us by email at sales@gamry.com or contact us by form submission here if you have questions about measuring small electrochemical signals. Our Reference 620 potentiostat is designed from the ground up to accurately measure the smallest electrochemical signals.