Amperometric cells

Operating in either traditional amperometric or pulsed modes with a choice of reference and working electrodes, our cells are ideal for typically chromatography methods requiring high-sensitivity detection of various redox-active analytes in applications ranging from neurochemical to carbohydrate analysis.

Features and benefits

• High sensitivity – unique designs enable high-performance, sensitive-detection applications.
• Low maintenance – a unique working electrode design minimizes the requirement for electrode polishing; solid-state reference electrodes mitigate the need for reference-liquid filling.
• Wide variety – ESA has designed numerous electrodes specifically for critical applications using a series of electrode types and materials. These include a full complement of cells designed for high-sensitivity neurotransmitter analysis.
• Excellent stability – optimal designs and material choices deliver the long-term stability in electrode performance required for routine or sophisticated analyses.

Model 5040 Amperometric Analytical Cell

This thin-layer amperometric cell is designed to be used with a variety of target electrode materials and permits easy disassembly to restore the electrode surface by polishing or other methods. The innovative solid-state palladium reference electrode is virtually maintenance free, so that there is never a need for special filling solutions, cleaning, or replacement. This reference electrode compensates for changes in pH and provides a stable response over a broad pH range. It is especially useful with pH gradient mobile phases and is commonly used with pulse mode operation.

Optional working electrode materials that are available are: Gold (P/N 55-0187), Platinum (P/N 55-0183), Glassy carbon (P/N 70-2000) or Silver (P/N 70-0096) working electrodes.

 Model 5041 Amperometric High Sensitivity Analytical Cell

Similar to the Model 5040 cell, this low volume, thin film amperometric cell which employs a choice of working electrode surfaces. This cell is designed to be used in microbore situations which require the ultimate in mass sensitivity.

ESA's development of a glassy carbon target electrode has lead to the lowest detection limits of any commercially available electrochemical detector.

When used in microdialysis applications, this cell’s isolated reference electrode improves performance when aCSF solutions are used.