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With the release of the J2 cell, you may be wondering which Jackfish cell is the most suitable for your research. The table below contrasts the features of the two cells to help you decide which cell might be a better fit.

	J1	J2
Material Purity	All wetted components made of glass, FKM/FFKM, and PTFE/PEEK. All components can be rigorously cleaned according to standard electrochemistry procedures.	Under normal use, the wetted materials are glass, FKM/FFKM, and PTFE/PEEK. The PTFE-coated rubber septum is exposed to solvent vapours. Celcon compression caps cannot be acid washed.
Electrolyte options	Ground glass joints designed for use with aqueous electrolyte.	Completely sealed cell design is compatible with volatile solvents.
Counter electrode	Jackfish offers a choice of Pt or Au CE. Extra 7/14 ground glass joints are supplied for users to utilize a metal wire of their choice.	Pt CE available as an add-on. Standard 6 mm diameter compression-style fitting accommodates a variety of third-party electrodes.
Reference electrode	Reference arm is separated with a stopcock which acts as a salt bridge, preventing migration of RE filling solution into the cell body. Jackfish offers Ag/AgCl RE, or the user can supply their own to fit in the 18 mm ID reference arm.	Electrodes are inserted directly into the cell in close proximity to the working electrode, reducing the impedance. A standard 6 mm diameter compression-style threaded port accommodates a variety of aqueous and non-aqueous commercial electrodes.
Air-sensitive chemistry	Only possible by greasing the ground glass joints. Wetted ground glass joints slowly evaporate water to the environment and are unsuitable for use in a glovebox.	Completely sealed design can be used with Schlenk technique, or in a glovebox.
Minimum cell volume	20 mL (including reference arm)	10 mL

You might also want to check out our product release video for the J2 which walks through the differences between the cells in a bit more detail.

If you can’t decide which cell is best for you, or if you want to take advantage of the features of both cells, we do offer a combo discount available if both cells are purchased at the same time.

Back at the end of May, our own Ian Burgess gave a presentation on time-resolved spectroelectrochemistry using the Jackfish cell. These types of experiments are made possible by using an tunable infrared laser source as opposed to a globar. The webinar was hosted by IRsweep AG, a manufacturer of a tunable laser-based IR spectrometer.

The first 10 minutes of the webinar gives an overview of the dual-frequency comb technology as applied to IRsweep’s IRis-F1 spectrometer presented by Raphael Horvath. This introduction is followed by Ian’s 20-minute presentation on the first use of dual comb spectroscopy (DCS) for time-resolved ATR-SEIRAS measurements. Ian presents the desorption of a pyridine derivative as a test system to demonstrate a 10 μs time resolution. The DCS instrument provides a huge reduction in experiment time compared to a conventional step-scan experiment that would otherwise be required to achieve comparable time resolution. This presents exciting possibilities for the monitoring of transient species adsorbed to the electrode during electrocatalysis. The webinar is concluded with a 10 minute Q&A period.

Many thanks to IRsweep for facilitating the webinar. Click here to view the VOD of the webinar.

On June 23, 2020, we gave a webinar hosted by PIKE Technologies on the main considerations when designing an ATR-SEIRAS experiment. Ian Burgess gave a 30 minute introduction to ATR-SEIRAS, including discussion of Effective Medium Theory as a framework for understanding SEIRAS as well as the key experimental consideration when designing an experiment utilizing this technique. The presentation was followed by a 30 minute question period. During the webinar, Ian provides many useful tips on how to reliably produce the notoriously challenging metal films required for the technique.

Click here to view the webinar VOD!