A Visual Catalog of Electrode Holders

WPI’s microelectrode holder-half-cells couple fluid-filled glass micropipettes to high input impedance amplifiers. A Ag/AgCl pellet (or a silver wire) molded into the holder body provides stable potential. Electrical connection is made via male 2mm pins or female 2mm sockets. The pipette may be mounted axially or at right angles to the holder. Pipettes are held with screw-caps or rubber gaskets (without caps). Filling WPI microelectrode holders with electrolytes containing chloride results in stable electrode potential. Suitable electrolytes include KCl, NaCl andCaCl₂. Holders are supplied for standard WPI single capillary tubing of 1.0, 1.2, 1.5 and 2.0mm outside diameters. (Call WPI regarding custom designs for other glass diameters.) The holder style you select will depend on your experimental application, space, and instrumentation.

Take a look at the variety of microelectrode holder available for your applications.

Crafting high-quality glass micropipettes is essential for precision work in microinjection, patch clamping, electrophysiology, and a wide range of microsurgical and research applications. WPI offers a complete suite of microforges, pullers, and bevelers designed to help researchers create consistent, reproducible pipette shapes tailored to their experimental needs. Whether you’re pressure-polishing patch-clamp pipettes, preparing multi-barrel assemblies, or measuring electrode impedance, the tools below provide reliable control, advanced programmability, and robust optical performance to support even the most demanding labs.