Specialized Tools for Electrophysiology and Cell Biology Research

Leak-Free & Low Leak Reference Electrodes

Product Summary

Eliminate problems associated with the use of conventional porous junction-based reference electrodes.

 

Eliminates:

  • clogging
  • sample contamination
  • electrolyte loss
  • changing of ionic strength of the sample
  • difficulties with organic based solvents

Leak Free electrodes

Leak Free reference electrodes utilize a unique junction that is highly conductive (< 30 kΩ) but not porous. There is no solution migrating through the junction in either direction making the reference totally leak free!

The junction is resistant to most commonly used organic solvents. It offers excellent resistance to acetonitrile, DMSO, THF, MEK, acetone, dichloromethane, esters, alcohols, ketones, and hydrofluoric acid or other common dilute acids and bases.

Unlike conventional reference electrodes, there's no need to store these electrodes in concentrated chloride solution. If the electrode is left dry for a long period of time, it should be immersed in water for few hours to recover.

Leak Free reference electrodes are available in two sizes, and custom configurations are possible.

Low-Leakage Reference Electrodes

The Low-Leakage reference electrodes are designed for use in applications where contamination would interfere with the application.

The electrode junctions are resistant to most commonly used organic solvents. They offer excellent resistance to acetonitrile, DMSO, THF, MEK, acetone, dichloromethane, esters, alcohols, and ketones. Hydrofluoric acid or common dilute acids and bases also have no effect on the on these electrodes.

Two low-leakage reference electrodes are available. One is 2 mm (0.08 in) in diameter and the other is 5 mm (0.2 in) in diameter. Custom configurations are possible.

Reference Electrodes Leak-Free Low-Leakage
Part Number LF-1 LF-2 KZT-5
Order Number 69-0053 69-0023 69-0025
Diameter 1 mm 2 mm 5 mm
Length 100 mm 65 mm 130 mm
Material PEEK* PEEK* PEEK*
Leakage Rate None None 5 x 10-12 L/min
Electrolyte 3.4 M KCl 3.4 M KCl 3.4 M KCl
Electrical Connection 1 mm pin 1 mm pin 2 mm pin
Junction Resistance < 30 kΩ** < 30 kΩ** < 1 kΩ**
Temperature Range 5° to 80°C 5° to 80°C 5° to 80°C
Storage Distilled Water Distilled Water 3 M KCl
Reference potential relative
to the H+ standard
About 242 mV
* Polyetherether Ketone
** In 1 M KCl

Order No. Model No. Product Description USA Price Order
69-0053 LF-1 Leak-Free reference electrode, 1 mm diameter, 100 mm length, 1 mm gold plated pin, < 30 kΩ resistance Login Login
69-0023 LF-2 Leak-Free reference electrode, diameter 2 mm, length 65 mm, 1 mm gold plated pin, < 30 kΩ resistance Login Login
69-0025 KZT-5 Low-leakage reference electrode, 5 mm diameter, 130 mm length, 2 mm pin, < 1 kΩ resistance Login Login

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