The J1 is our flagship cell. Its polymer and glass construction ensures unbeatable chemical stability under intense experimental and cleaning conditions. Recessed spring-loaded pins make robust, reliable contact with the gold-coated crystal surface. The supplied glass bubblers and gas trap allow the solution to be sparged with inert gas. Chloride migration from the reference electrode is mitigated by a secondary ground glass junction.

Key Features

• choice of PEEK or PTFE polymer cell base
• PEEK holder for ATR element
• glass cell body
• glass bubblers and gas trap for solution sparging
• 3-electrode cell configuration
• spring-loaded pins electrically contact the thin film working electrode

For a complete list of the parts included with the J1, please consult the manual.

Product Variants

Several J1 variants are available. The principal choices for the user are:

Choice of cell base material

The J1 cell base is available in two different material types: PTFE and PEEK.

	PTFE	PEEK
Chemical Robustness	The gold standard in chemical inertness and resistance.	Highly chemically resistant, but lower resistance than PTFE. Incompatible with concentrated nitric and sulfuric acids.
Mechanical Strength	Some care must be taken to avoid damaging the threads of the finely tapped holes for contact screws.	More mechanically robust. The threads are less likely to be damaged during assembly.
Rigidity	Soft material which may deform if dropped.	Rigid, non-deformable material.

Choice of ATR element holder

Two holder options are available, depending on which ATR element the user wishes to use. The ATR elements are sold separately.

FAC Holder	Wafer Holder
PIKE Face-Angled Crystals (FACs) have an anti-reflective coating which increases spectral throughput and improves signal to noise. SEIRAS signals are up to twice as strong using the FAC compared to a conventional hemisphere. However, strongly absorbing Si phonon modes impose a low-wavelength cutoff around 1250 cm-1.	The wafer holder accommodates 500 μm thick microgrooved ATR wafers, an inexpensive alternative to larger ATR crystals. The underside of the wafer is patterned with microprisms to enable excellent optical coupling. The low pathlength minimizes throughput loss from Si phonon modes, allowing access to the complete mid-IR spectral range from 5000 to 400 cm-1.

Product Number	Product Name	Cell Base Material	ATR Element Holder
162-4709	J1FP	PEEK	FAC
162-4714	J1WP	PEEK	Wafer
162-4719	J1CP	PEEK	FAC and Wafer (both included)
162-4710	J1FT	PTFE	FAC
162-4715	J1WT	PTFE	Wafer
162-4717	J1CT	PTFE	FAC and Wafer (both included)

ATR Elements

Electrodes

Add-ons