The heated gas cell can be located in an external module or connected to the INVENIO via the right exit, or the gas cell may be situated at the internal position.
An external gas cell allows the operator access to the FT-IR spectrometer’s great flexibility and makes it possible to add on accessories such as an ATR unit or a microscope.
The gas transfer line is characterized by a low volume and a short capillary length, thus minimizing dilution effects and leading to fast response times. To prevent cold spots and thus condensation of the gases evolved, the entire gas path is heated.
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Gas cell volume and length
Temperature of transfer line
Wave number range:
FT-IR: 8000 cm-1 to 340 cm-1
Coupling: 4400 cm-1 to 600 cm-1
(double window technique KBr+ZnSe)
better than 0.4 cm-1
Transfer line material:
Stainless steel (exchangeable)
Window material gas cell:
ZnSe + KBr
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