Electrochemical Cell Designs for Coulochem® Detectors by ESA - A Dionex Company

Coulometric Electrochemical Cells- The Key to Enhanced Selectivity Coulochem cells are unique in their design, employing the patented ESA flow-through porous graphite electrode. These low-volume analytical cells contain two working electrodes. The high surface area of each electrode results in 100% reaction of the electroactive compound. The first (screening) electrode can be used to eliminate potentially interfering compounds from subsequent detection at the second (analytical) electrode.... Read more


Electrochemical Cell Designs for Coulochem® Detectors by ESA - A Dionex Company product image
Electrochemical Cell Designs for Coulochem® Detectors

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Coulometric Electrochemical Cells- The Key to Enhanced Selectivity

Coulochem cells are unique in their design, employing the patented ESA flow-through porous graphite electrode. These low-volume analytical cells contain two working electrodes. The high surface area of each electrode results in 100% reaction of the electroactive compound. The first (screening) electrode can be used to eliminate potentially interfering compounds from subsequent detection at the second (analytical) electrode.

  • Unparalleled selectivity – coulometric technology enables detection and analysis of compounds of interest in the presence of extraneous material that would interfere with detection by other electrochemical techniques.
  • Unmatched performance – flow-through electrode design provides complete high-efficiency oxidation for maximum sensitivity.
  • Minimal maintenance – robust graphite electrodes require little in the way of routine cleaning and regeneration procedures; solid-state reference electrode rarely needs maintenance