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LowProfile Reference Electrodes

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These LowProfile reference electrodes are designed for use with the Screen-Printed Electrode Cells, other Low Volume Cells, and the Honeycomb Spectroelectrochemical Cell Kit.  The low cost of these reference electrodes also make them ideal for nearly any application.  The aqueous silver chloride (Ag/AgCl) reference electrodes are filled with a gel electrolyte* and have a small ceramic frit at the lower end of the electrode.  The non-aqueous reference electrodes have an Ag wire and no filling electrolyte.  The outer diameter of the electrodes is 3.4-3.5 mm and electrical connection is made via a 1.0 mm diameter pin at the top end of the electrode.  This pin can accept an alligator clip or a small cable with an appropriately sized "pin and socket" connector.

The frit at the bottom of the non-aqueous reference electrodes is a porous glass material called Varapor100 (a replacement to the now-discontinued Vycor), which is a glass frit containing pores of around 10 nm in diameter.  This glass frit is fixed in place via FEP heat shrink tubing, and can be removed and replaced with a new glass frit if needed.  Porous glass frit replacement kits are available and can be purchased separately.

*The gel is comprised of a mixture of potassium chloride, glycerol, and cellulose gum.

See "Description" tab below for additional precautions and information.

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# Description Price in USD
LowProfile Aqueous Reference Electrodes
RRPEAGCL

LowProfile Silver Chloride (Ag/AgCl) Reference Electrode
3.5 mm OD, 74 mm length, for use with Screen-Printed Electrode Cells

RRPEAGCL2

LowProfile Silver Chloride (Ag/AgCl) Reference Electrode
3.5 mm OD, 60 mm length, for use with Honeycomb Spectroelectrochemical Cells

RRPEAGCL-110

Long Length LowProfile Silver Chloride (Ag/AgCl) Reference Electrode
3.5 mm OD, 110 mm length, for use with taller low volume cells or cells with long neck

LowProfile Non-Aqueous Reference Electrodes
AFREF003093

LowProfile Glass Frit Ag Pseudo Reference Electrode (93 mm)
electrode includes PTFE-capped Ag wire electrode (53 mm long wire), 3.4 mm OD glass tube (69 mm long), FEP heat shrink and Varapor100 glass frit

AFREF003062

LowProfile Glass Frit Ag Pseudo Reference Electrode (62 mm)
electrode includes PTFE-capped Ag wire electrode (19 mm long wire), 3.4 mm OD glass tube (38 mm long), FEP heat shrink and Varapor100 glass frit

Porous Glass Frit Replacement Kit
AKFRIT125

Porous Glass Frit Replacement Kit
contains 3 sets of Varapor100 (Vycor replacement) glass frits and short lengths of FEP heat shrink tubing

Note: this product can only be used with non-aqueous reference electrodes

Accessories
AKREFHUT3

Low Profile Reference Electrode Storage Vessel
20 mL storage vessel for Low Profile Reference Electrodes.  Includes amberized storage vessel and cap with silicon septa.

These LowProfile reference electrodes are designed for use with the Screen-Printed Electrode Cells and the Honeycomb Spectroelectrochemical Cell Kit.  The low cost of these reference electrodes also make them ideal for nearly any application.  The aqueous silver chloride (Ag/AgCl) reference electrodes are filled with a gel electrolyte* and have a small ceramic frit at the lower end of the electrode.  The non-aqueous reference electrodes have an Ag wire and no filling electrolyte.  The outer diameter of the electrodes is 3.4-3.5 mm and electrical connection is made via a 1.0 mm diameter pin at the top end of the electrode.  This pin can accept an alligator clip or a small cable with an appropriately sized “pin and socket” connector.

Three different lengths are available for the aqueous LowProfile reference electrodes.  The standard version, which is 74 mm long, is intended for use with our Screen-Printed Electrode Cells and Low Volume Cells.  The shorter version, which is 60 mm long, is intended for use with our Honeycomb Spectroelectrochemical Cell.  Additionally, Pine Research offers an extra long version for taller cells, or cells with long necks, that is 110 mm long.

Two different lengths are available for the non-aqueous LowProfile reference electrodes.  The standard version, which is overall 93 mm long, is intended for use with our Screen-Printed Electrode Cells and Low Volume Cells.  The shorter version, which is overall 62 mm long, is intended for use with our Honeycomb Spectroelectrochemical Cell.

The frit at the bottom of the non-aqueous reference electrodes is a porous glass material called Varapor100 (a replacement to the now-discontinued Vycor), which is a glass frit containing pores of around 10 nm in diameter.  This glass frit is fixed in place via FEP heat shrink tubing, and can be removed and replaced with a new glass frit if needed.  Porous glass frit replacement kits are available and can be purchased separately.

The Ag/AgCl reference electrodes may not provide continuous good performance in non-aqueous solvents.  The fill solution (gel) is aqueous based.  For non-aqueous use, we recommend the related LowProfile Silver (Ag) Pseudo-Reference Electrode.

View SDS Forms for reference electrodes and electrolyte filling solutions.

Visit our YouTube channel for helpful instructional videos regarding the use and maintenance of this and many other Pine Research products!

Document # Title

DRP10043

LowProfile Silver Chloride Reference Electrode Product Information
click here to download (318 KB download)

DRP10262

LowProfile Non-Aqueous Glass Frit Reference Electrode Product Information
click here to download (434 KB download)

DRP10264

Porous Glass Frit Replacement Kit Product Information
click here to download (533 KB download)

DRK10053

Overview of Reference Electrode Operation and Alternative Reference Electrodes
click here to download (1 MB download)

Troubleshooting

DRK10039

Troubleshooting Noise in an Electrochemical System
click here to download (156 KB download)

Material Link

KCl with AgCl reference filling gel

click here to download (285 KB download)

SDS Forms

Click here to view all available SDS Forms

Below are selected product references:

LowProfile Ag/AgCl Reference (74 mm long) [RRPEAGCL]
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