EPR電子順磁共振儀耗材 EPR Cells

EPR電子順磁共振儀耗材
Impurity Analyses – Clear Fused Quartz (CFQ) vs. Suprasil (Synthetic Quartz)   
EPR Sample Tubes and Accessories    
‧ EPR Cells  
Dewar Inserts   
Dewar Flasks (Cold-Finger Dewars)    
Variable Temperature Accessories   
Electrolytic Cells for EPR      
Miscellaneous EPR Supplies    
EPR Cells
• Standard Aqueous Cells
• Special Aqueous Cells with Hexagonal Fill Tubes
• JEOL Aqueous Cells
• Variable Temperature Aqueous Cells
• Tissue Sample Cells
• Flow Aqueous Cells
• Replacement Parts for Wilmad Tissue and Aqueous Cells

Standard Aqueous Cells

 

Wilmad uses “-Q” to designate quartzware using Suprasil in the critical portions of the cell. All other cells are prepared from Clear Fused Quartz (CFQ).

NOTE: Cell product numbers that include the letter “S” indicate that optically polished flat windows are joined to the polished wall ends via a special thermal fusion technique to form an ultra high precision bore flat cell. The two windows are parallel to each other within several visible light wave numbers. These items are recommended for EPR experiments coupled with optical techniques.
***Special Note: Not recommended for contemporary EPR.

Standard TE102Cavity Aqueous Cells

Standard TM110Cavity Aqueous Cells

Special Aqueous Cells with Hexagonal Fill Tubes

These Aqueous Cells are unique due to the shape of the fill tubes. With their hexagonal outer surface, these special cells make alignment easier to reproduce. Can be used with a goniometer.

Wilmad uses “-Q” to designate quartzware using Suprasil in the critical portions of the cell. All other cells are prepared from Clear Fused Quartz (CFQ).

NOTE: Cell product numbers that include the letter “S” indicate that optically polished flat windows are joined to the polished wall ends via a special thermal fusion technique to form an ultra high precision bore flat cell. The two windows are parallel to each other within several visible light wave numbers. These items are recommended for EPR experiments coupled with optical techniques.

These Aqueous Cells are unique due to the shape of the fill tubes. With their hexagonal outer surface, these special cells make alignment easier to reproduce. Can be used with a goniometer.

Special TE102Cavity Aqueous Cells With Hexagonal Fill Tubes

Special TM110Cavity Aqueous Cells with Hexagonal Fill Tubes

JEOL Aqueous Cells

The Universal Cavity operates in TE011mode which requires a certain type of aqueous cell for a JEOL spectrometer. Prepared from special thin Suprasil plates, sample thickness is 0.4mm for the WG-LC-11 and 0.3mm for the WG-LC-12.

NOTE: For samples of 50µL or less, please use the capillary sample tubes found Capillary Tubes for JEOL Spectrometers.

Variable Temperature Aqueous Cells

Wilmad uses “-Q” to designate quartzware using Suprasil in the critical portions of the cell. All other cells are prepared from Clear Fused Quartz (CFQ).

NOTE: Cell product numbers that include the letter “S” indicate that optically polished flat windows are joined to the polished wall ends via a special thermal fusion technique to form an ultra high precision bore flat cell. The two windows are parallel to each other within several visible light wave numbers. These items are recommended for EPR experiments coupled with optical techniques.

Small Volume TE102Variable Temperature Aqueous Cell
The WG-808 VT Aqueous Cell works with most common VT Dewar Inserts, including WG-821(-X) and WG-848. It has a small volume, so use it only with samples that give a strong signal.

***Special Note: Not recommended for contemporary EPR.

Large Volume TM110Variable Temperature Aqueous Cell
For insensitive samples, larger volumes are needed for sufficient sensitivity. With newer spectrometers, use WG-813-TMS-S(-Q).

Tissue Sample Cells

Aqueous Sample Cells can only be used when your liquid sample can be pulled into the cell using a vacuum. If your samples are viscous, try Wilmad’s tissue cells! Tissue Sample Cells are ideal for studying wet tissues and polymers, e.g. epithelial slices, using EPR.

***Special Note: Not recommended for contemporary EPR.

Flow Aqueous Cells

If you study fast reactions involving free radical intermediates, then you know how difficult it is to capture or “trap” a spectrum of your sample. Flow cells have proven effective in producing a “steady-state” concentration of many reactive intermediates in a microwave cavity resonator.
Room Temperature Aqueous Flow Cell

Variable Temperature Aqueous Flow Cell

NOTE: To use this VT aqueous cell a modified Bruker Transfer Dewar WG-842-MRL may be required
Wilmad uses “-Q” to designate quartzware using Suprasil in the critical portions of the cell. All other cells are prepared from Clear Fused Quartz (CFQ).

Replacement Parts for Wilmad Tissue and Aqueous Cells

Quartz Coverplates
All coverplates are 1.6 mm thick and have notches for the support clips used to hold the coverplate in place. They are available in CFQ, Suprasil or TPX plastic**, so you can match the Tissue Cell you already have.
***Special Note: Not recommended for contemporary EPR.

Wilmad uses “-Q” to designate quartzware using Suprasil in the critical portions of the cell. All other cells are prepared from Clear Fused Quartz (CFQ).

TPX Coverplates
TPX coverplates can be used with water-based samples that must be degassed, e.g. for ELDOR or ST experiments. TPX is highly permeable to O2, N2, and CO2. Equilibrate your sample with a stream over the coverslip. Avoid using organic solvents with TPX plastic.
**PLEASE NOTE: TPX Coverplates may have limited availability.

Coverplate Clips
Our special Bronzite clips secure the cover plate to tissue cells without interfering in your spectra.

Replacement Stoppers for Aqueous Cells
If you lose or break a plastic or glass stopper, we can get you replacements quickly. We recommend you stock a few extras. Your experiments should never be halted for lack of a simple quartz or plastic stopper.

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