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50µm ZnSe Parallel Oyster Cell Bottom Assembly for Specac Pearl

The Oyster sample cell to be used with the Specac Pearl FT-IR liquid transmission accessory. Oyster cells offer defined, consistent, and repeatable path lengths. Oyster cells are offered as parallel or as wedged cells to eliminate fringing.

Part Number
Path Length
50.00 µm
100.00 µm
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The versatility of the Oyster sample cell for the Specac Pearl FT-IR liquid transmission cell allows a wide range of samples to be analyzed quickly and easily. The Lift and Tilt mechanism of the Oyster cell allows for the top of the cell assembly to be lifted and tilted to one side allow for easy sample changes and cleaning. The Oyster is ideal for handling highly viscous samples such as oils and greases. For volatile samples, sample injection through an access port at the top of the Oyster cell allows for easy sample introduction. Viewing windows located at the top and bottom of the Oyster cell allow the user to view the sample and ensure no bubbles are trapped.

A complete Oyster cell is comprised of a separate top and bottom window assembly which are brought together to create a defined and repeatable path length. The top window assembly of the Oyster cell is placed as a precision fit over the bottom window assembly. The complete Oyster cell sits horizontally within the sliding tray of the Pearl optical unit. The top window assembly for a particular window material is common to all complete Oyster cells.The bottom window assembly can be varied with the common top assembly of a particular window material to vary Oyster cell path length and window orientation (parallel or wedged). The wedge angle is set for the bottom window assembly only.


Material ZnSe
Path Length 50.00 µm
Technology Type FT-IR