PerkinElmer Frontier IR, Руководство пользователя

Страница: 27 / 104

An Overview of the Frontier IR Dual-Range Spectrometers . 27
The sample compartment
The instrument has a large, purgeable sample compartment (Figure 5) located at the front of
the instrument.
Figure 5 Frontier IR sample compartment
Open the sample compartment by lifting the cover using the recess at the front.
The infrared beam enters the sample compartment through an aperture on the left. After
passing through the sample, it enters the detector area through an aperture on the right side
of the sample compartment.
Standard sampling accessories are mounted on a baseplate. The standard baseplate includes
a sample holder located by a knurled screw.
CAUTION
The windows in the sample compartment and external beam ports are
composed of KBr (for MIR and NIR configurations) that, although coated,
can be damaged by high levels of humidity.
If you spill a liquid in the sample compartment, wipe it up quickly. When
working with water-based samples open to the air, either purge the
sample compartment or leave the cover open.
CAUTION
A relative humidity higher than 80% can damage the windows of the
sample compartment. If you expect the humidity to exceed 80%,
continually purge or desiccate the sample compartment.
Sample compartment lid
Baseplate