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Electrochemical Single-core Microelectrodes

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Neuroscience Products

Electrochemical Single-core Microelectrodes

Thomas RECORDING electrochemical disc microelectrodes were originally designed for SECM (Scanning ElectroChemical Microscopy), but they are also suitable as working, reference and redox electrodes for other electrochemical applications like voltammetry or amperometry.

The electrodes are based on unique single metal core fibers of platinum or platinum/tungsten alloy, insulated with quartz glass.

Key features:

  • Material: quartz glass insulated platinum or platinum/tungsten
  • Unique manufacturing technique offers high reproducibility of tip geometry
  • Tip geometry: highly centered metal core
  • Signal quality: very good signal to noise ratio
  • Quartz glass offers better electrical characteristics as borosolicate glass
  • Tip shape: different tip shapes avaible with tip diameters in the µm range
Technical Data
Core conductor material:platinum (95%), tungsten (5%) or platinum (99,9%)
Insulation material: quartz glass
Tip shape:(B) disc type

(C) disc type (most common)
Connectors: gold plated male pin, 0.8mm

Matching female connector available from


L1: Standard is 80mm, custom adaption possible
L2: Standard is 5mm, custom adaption possible
L3: Standard is 40mm, custom adaption possible
d1: 2mm, custom adaption possible

See Figure 1 for the dimensions of the electrochemical multicore electrode.

Custom electochemical electrodes are available on request.


A special manufacturing process guarantees a highly centered metal core within the glass insulation and a high reproducibility of the RG ratio.

Every electrode produced by Thomas RECORDING is microscopically controlled and tested by cyclic voltammetry. Figure 3 demonstrates the performance of Thomas RECORDING electrochemical microelectrodes. The test results for each electrode are documented by test certificates enclosed to your shipment. The electrochemical active diameter is determined for every individual electrode by measuring the diffusion limiting current. For more information please be referred to the product information (see in Downloads, “Microelectrode for electrochemical Applications.pdf”).

Figure 1: Scanning elecron microscope photo of electrochemical disc microelectrode tip.

Figure 3: CV recorded with a 10µm Pt electrode in aqueous solution of 1mM ferrocenemethanol.


[7] Etienne M., Moulin J-P., Gourhand S. Accurate control of the electrode shape for high resolution shearforce regulated SECM. Electrochimica Acta; 2013; Volume 110, pp 16-21; DOI: 10.1016./j.electacta.2013.03.096

[6] Etienne M., Dossot M., Grausem J., Herzog G. Combined Raman Microspectrometer and Shearforce Regulated SECM for Corrosion and Self-Healing Analysis. Analytical Chemistry; 2014; 86 (22), pp 11203-11210; DOI: 10.1021/ac502670t

[5] Etienne M., Lhenry S., Cornut R., Lefrou C. Optimization of the shearforce signal for scanning electrochemical microscopy and application for kinetic analysis. Electrochimica Acta; 2013; Volume 88: pp 877-884, DOI:10.1016/j.electacta.2012.09.063

[4] Etienne M., Layoussifi B., Giornelli T. SECM-based automate equipped with a shearforce detection for the characterization of large and complex samples. Electrochemisty Communications, 2012, Volume 15, Issue 1, pp 70-73, DOI: 10.1016/j.elecom.2011.11.028

[3] van Megen M.J.J., Odijk M., Wiedemair J., Olthuis W., van den Berg A. Differential cyclic voltammetry for selective and amplified detection. Journal of Electroanalytical Chemistry, Volume 681 Page 6-10, 2012

[2] Etienne M., Layoussifi B., Giornelli Th., Jacquet D. SECM-based automate equipped with a shearforce detection for the characterization of large and complex samples. Electrochemical Communications; 2011;  15: 70-3

[1] Cornut R., Bhasin A., Lhenry S., Ethienne M., Lefrou Ch. Accurate and Simplified Consideration of the Probe Geometrical Defaults in Scanning Electrochemical Microscopy: Theoretical and Experimental Investigations. Analytical Chemistry, 2011; 83: 9669-75

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