Ref-10
Ref-RM
Ref-Insitu
Available as microsized
For laboratory and in situ use

Reference Microelectrode

Reference electrode for pH or Redox microelectrodes

Our reference microelectrode is a simple silver/silver-chloride open-ended electrode designed to work with potentiometric microelectrodes, such as the pH and Redox microelectrodes. Read more...

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Technical Data
Ordering Information & Sizes
Adaptations
Manuals & Videos
Reference electrode

The right choice for your application

For measurements with the Reference Microelectrode, it is important that the measuring sensor is in fluid contact with the reference. For most purposes this can be achieved with a large macro-reference. For some applications the sample is so small, e.g. a droplet, that the reference must be as small as the measuring microelectrode.

  • Our Reference Microelectrode is a glass electrode manufactured at Unisense.
  • For in situ use, Unisense manufactures a pressure-compensated macro electrode.
  • For laboratory use, Unisense provides a macro reference electrode from Radiometer Analytical.
Electrode and reference_1400x800
General
Cables & Connectors
Characteristics
General
Feature Standard Options Extra price for option selection
Feature
Total length
Standard
150-200 mm
Options
70-350 mm
Extra price for option selection
20-50%
Feature
Total length REF-RM
Standard
Approx. 190 mm
Feature
Diameter 20 mm from tip
Standard
<2mm (not REF-RM)
Options
<1 mm
Extra price for option selection
10%
Feature
Diameter 50 mm from tip
Standard
8 mm
Options
<2 mm
Extra price for option selection
20%
Feature
Shaft diameter
Standard
8 mm
Feature
Shaft protection diameter*
Standard
11 mm
Options
Can be omitted
Extra price for option selection

*When mounted with in situ mini connectors, the shaft has no protection mounted, but fits directly into the in situ sensor mounts with pressure compensation. In situ sensors have a standard length of 130-160 mm.

Cables & Connectors
Item Standard Options Extra price for option selection
Item
Cable
Standard
Co-axial, 3mm
Item
Cable length
Standard
1.5-2 m
Options
0-10 m
Extra price for option selection
Yes, depends on length
Item
Cable length REF-RM
Standard
1.3 m
Item
Connector
Standard
4 mm banana plug
Options
LEMO or BNC
Item
Connector REF-RM
Standard
4 mm banana plug
Options
BNC
Item
In situ gold pin connector
Standard
No
Options
Yes
Characteristics
Attribute Standard Extra price for option selection
Attribute
Lifetime
Standard
>1 year
Attribute
Temperature range
Standard
-10-40°C
Attribute
Reference type
Standard
Ag+ / AgCl
Extra price for option selection
30%
Attribute
Waterproof
Standard
Yes
Ordering information & Sizes
Ordering information & Sizes
Reference Microelectrode Size and description Options Extra price for option selection
Reference Microelectrode
REF-RM
Size and description
5 mm - robust reference electrode
Reference Microelectrode
REF-10
Size and description
8-12 µm - microelectrode
Options
3-5 µm | 25 µm | 50 µm
Extra price for option selection
20%
Reference Microelectrode
REF-100
Size and description
90-110 µm - microelectrode
Options
110-400 µm
Extra price for option selection
20%
Reference Microelectrode
REF-N
Size and description
1.1 x 40 mm - needle electrode
Reference Microelectrode
REF-NP
Size and description
1.6 x 40 mm - needle electrode for piercing
Reference Microelectrode
REF-ST-1/4
Size and description
1/4'' steel tube
Reference Microelectrode
REF-SL-1/4
Size and description
FT-cell 1/4'' Swagelok Tee
Reference Microelectrode
REF-SL-1/8
Size and description
FT-cell 1/8'' Swagelok Tee
Reference Microelectrode
REF-PEEK-1/8
Size and description
FT-cell 1/8'' PEEK Tee
Reference Microelectrode
REF-PEEK-1/16
Size and description
FT-cell 1/16'' PEEK Tee
Reference Microelectrode
REF-FT-GLASS-6
Size and description
Glass FT-cell 6 mm outer diameter
Reference Microelectrode
REF-FT-GLASS-8
Size and description
Glass FT-cell 8 mm outer diameter
Reference Microelectrode
REF-Insitu
Size and description
5 mm - in situ electrode
Reference Microelectrode
REF-Insitu-ST-1/4
Size and description
1/4'' steel tube - in situ
Reference Microelectrode
REF-Insitu-SL-1/4
Size and description
FT-cell 1/4'' Swagelok Tee - in situ

Related Publications

The Effect of Fe Dopant Location in Co(Fe)OOHxNanoparticles for the Oxygen Evolution Reaction
Sun, Zhaozong et al. (2021), ACS Nano, vol. 15, 18226-18236
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