Silver / Silver Chloride Refillable Reference Electrode – 6 mm dia. (redox.me)
It is a compact refillable Ag/AgCl reference electrode equipped with ceramic frit molten into the glass body. This electrode outperforms competing products in terms of mechanical stability, voltage stability and lifetime. In general, the reference electrode is composed of a system of phases, which retain an essentially constant composition, and therefore provides a stable potential by which the working electrode potential can be monitored. The phases present in reference electrodes undergo reversible redox processes at a very high rate, enabling them to rapidly adjust to changes in the solution’s ionic activity, but leaving them sensitive to the passage of large current densities.
Application note
This electrode is commonly used with aqueous acidic electrolytes, but due to the low resistance of the frit it can be used with standard non-aqueous electrolytes, as well. The reference electrode should be stored with the rubber plug applied on the tip. Please see the full instruction here. Keeping in the solution may shorten its lifetime (the electrode operates well as long as there is at least ¼ of the solution in the electrode tube). Before use rinse it with deionized water. If air bubbles are present around the porous frit, flick the tip several times to remove them. For cleaning use detergent (dish washing detergent with water), alcohols or acetone and rinse it with deionized water at the end. To re-fill the electrode please follow this article.
Specification
effective length: 30 mm or 70 mm
tube diameter: 6 mm
filling solution: 3M KCl
potential stability: <5 mV
frit resistance: 2-10 kohm at RT
operating temperature: 0-100 deg C
potential vs SHE at 25 °C: 0.207 V
Intrastat data
HS Code: 90278930
Country of Origin: Sweden
NET weight: 100g
Product includes
1 Ag/AgCl refillable reference electrode
1 O-Ring
1 glass tube for storing purposes
Select configuration
Electrode length: 30 mm / 70 mm
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Read moreThe metal wire counter (auxiliary) electrode is provided in the electrochemical cell as a current sink to shunt excess current away from the reference electrode. The counter electrode is generally chosen to be inert under reaction conditions, typically platinum, rhodium, palladium, or gold wire. It well fits aqueous (FKM O-Ring) and organic solvent (FFKM O-Ring) electrolyte requirements.
Application note
The metal wire electrode is immersed in the ion-conducting solution as a counter electrode. An electric current is passed between the working electrode and the counter electrode for a certain amount of time. After the process, the electrode should be washed several times with isopropanol or ethanol and dried under the nitrogen flow. Store the metal wire electrode in the glass vial sealed with O-rings (all included in the package).Specification
helix inner diameter: 4.8 mm
helix outer diameter: 6 mm
number of turns: 12
wire diameter: 0.6 mm
total wire length: 250 mm (215 mm long helix, 35 mm long straight wire)Intrastat data
HS Code: 71101910 (platinum), 71081310 (gold),
Country of Origin: Sweden
NET weight: 100 gProduct includes
1 metal wire electrode with PEEK plug and selected electrical connector
1 O-Ring
1 glass vial -
EmStat4 MUX (2-in-1: Potentiostat with integrated multiplexer)
Read moreGone are the days with too many cables. With the EmStat4 MUX you have a potentiostat and a multiplexer in one! The EmStat4 MUX is a powerful potentiostat, galvanostat and impedance analyzer and supports all popular electrochemical techniques. Its 8 channels allow for sequential measurements, for example eight Screen-printed electrodes, or eight working electrodes in eight different cells. The instrument’s measurements can be highly customized using MethodSCRIPT. The 4 different cell connections available allow for many different setups. When the measurements are finished, you can easily save your results in PSTrace, or export your results to Excel.
More information could be found tought link:
https://www.palmsens.com/product/emstat4-mux/
- Integrated 8-channel multiplexer
- Supports 2-, 3- and 4-electrode setup using Sense Lead
- Potential range: ± 3V
- Compliance voltage: ± 5V
- Current ranges: 1 nA – 10 mA
- Maximum current: ± 30 mA
- FRA / EIS up to 200 kHz
Two modes of operation
- Consecutive mode: this mode switches channel when a complete measurement has finished
- Alternate mode: this mode switches all activated channels within the specified time interval of a measurement.
In both modes the unselected Working Electrodes can either be left floating or switched to Ground to keep the specified voltage.
Supports a 2-, 3- or 4-electrode setup
- Connect four electrodes per channel by using the Sense Leads.
- Or connect only three electrodes per channel by internally connecting all Sense electrodes to the Working Electodes in software.
- Do you need to connect only two electrodes per channel? Combine the reference and counter electrode physically on the cable, or with a single click on the PSTrace software.
8 to 128 channels
Is 8 channels not enough? If more channels are required, one or more MUX-R2 can be stacked to the EmStat4 MUX for a total of up to 128 channels.
Script your experiments!
Via the script window of PSTrace it is possible to perform a different experiment on each of the channels sequentially. Alternatively, you can use MethodSCRIPT to fully customize your measurements per channel.
Multichannel or Multiplexer?
To make it easier for you to decide, if a multiplexer or a multichannel device is more suitable for your application, we have created a short explanation of multiplexers and multichannels.
See: https://www.palmsens.com/app/uploads/2016/12/Multiplexer-Polypotentiostat-or-Multichannel.pdf
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AC1.GP. Electrochemical sensor with a working electrode of guaranteed purity
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Dimensions: 25.40 mm x 7.26 mm x 0.63 mm
WE material: gold, platinum, silver, copper, iron, nickel, cobalt, chromium, tantalum, irridium, rhenium, magnesium, palladium, zirconium and others
*Selection of sensor electrode materials other than those listed above is possible upon agreement with the customer.
The sensor is made on a corundum ceramic base. Working, reference and auxiliary electrodes are applied to this surface. Working, reference and auxiliary electrodes are made of different materials. At the end of the sensor there is a contact field that is connected to the active part by silver conductive paths that are covered with a dielectric protective layer. The working electrode of the sensor with a diameter of 2 mm is made of a material of guaranteed purity of up to 99.99 % depending on the selected material– standard layer thickness 0.0125 mm.
We also offer a working electrode made of polished gold AC1P.W*.R*, with homogenous surface with roughness less than 1 µm.
We also offer activated graphite sensors on customer request.
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The drop of liquid Pt at 2000 °C forms a drop of Pt. The surface of HPDE has nearly ideal surface which is impossible to obtain using polishing. HPDE has also spherical symmetry which enables mathematical treatment of its response.
The material is not toxic and it is chemically stable. The only disadvantage is HPDE cleaning, which can be, however, in some cases solved by carefull insertion of the electrode tip to the flame of an alcohol burner.
Thus HPDE can be used as reference electrode for complicated electrochemical studies, where it is necessary to distinguish the analytical signal from the signal generated by surface inhomogenities.Hanging platinum drop electrode (HPDE) is designed for measurements with thermostated cell TC4, TC5, TC6 and TC9.