Sample shuttle
– A sample shuttle lets you collect background
spectra without removing the sample from the sample compartment.
The shuttle automatically moves the sample out of the beam path
before background collection begins. Since the sample compartment
cover is not opened, the system purge is maintained.
Specular reflection
accessories – Specular reflection provides a
nondestructive method for measuring surface coatings without
sample preparation. Specular reflection accessories can be used to
analyze surface-treated metals, paints, semiconductors, and resin and
polymer coatings.
TGA interface/TGA module
– This interface is equipped with a
built-in, temperature-controlled flow cell and must be connected to a
thermogravimetric analysis (TGA) furnace. You can analyze the
evolved gases from TGA experiments using the OMNIC Series
software. The TGA interface is usually mounted in the sample
compartment of an AEM; the TGA module is usually installed on
the side of the spectrometer, leaving the AEM or spectrometer
sample compartment free for other experiments and accessories.
Transmission E.S.P.
accessory – Transmission is the oldest and
most efficient sampling technique in FT-IR spectroscopy and can be
used for sampling liquids, gases or solids. A variety of cells and
sample holders are available for transmission analysis. All can be
mounted in the spectrometer sample compartment. Thermo
Electron’s E.S.P. (Enhanced Synchronization Protocol) technology
provides continuous communication between the accessory and
OMNIC to ensure that the accessory is operating correctly. This
accessory, or the validation wheel (described below), is required for
using an NPL or serialized polystyrene standard for validation with
Thermo Electron’s Val-Q
software.
Nicolet FT-IR User’s Guide 89
