The TGA-IR interface
combines the sample analysis tools of a TGA with the
identification power of an FT-IR spectrometer.
The Nexus TGA-IR Interface
and OMNIC Series software combines FT-IR with
Thermogravimetric Analysis (TGA) to offer real-time
monitoring of gases as they evolve from a sample. The
combined system measures the change in weight of a
sample as function of temperature or time in a controlled
atmosphere and collects IR spectra of the evolved gas
components.
The Nexus TGA-IR interface
is connected to the TGA via a heated transfer line. As gases
evolve during the TGA experiment, they pass into the flow
cell of the TGA-IR interface where the infrared spectra are
collected. The Nexus TGA-IR Interface is beneficial in
determining sample characteristics such as decomposition
pathways, thermal stability or sample integrity. Its
flexible interface design can be placed in the sample
compartment of the Nexus spectrometer or in a Nexus
Auxiliary Experiment Module (AEM). The TGA flow cell is
compatible will all types of evolved gases and materials.
Additionally, the large flow cell diameter provides high
throughput and prevents spectral interference caused by
deposits on the walls. The TGA-IR Interface features a flow
cell that is spring loaded and easily removed for cleaning.
