Analyzing Samples
Agilent 5500 Series FTIR Operation Manual
37
For detailed software instructions for collecting a background, refer
to the MicroLab Software Operation Manual.
CAUTION
To ensure an accurate background spectrum is collected, perform a visual
inspection of the diamond ATR sample mounting surface, looking for any haze or
film present on the diamond from measuring the previous sample. If a film is
observed, repeat the cleaning procedure above until the diamond surface is clear
of any residue.
Collecting a sample spectrum
To load an ATR sample into the system:
1
Open the sample press by moving the arm back as far as it can
go, so that the sample press tip is elevated slightly from the
diamond ATR surface (see Figure 9).
Figure 9.
Opening the sample press
2
The diamond sampling window should be visible at this point.
Place a small amount of material to be measured on the diamond
ATR crystal. The crystal is the clear, circular shaped material
held in place by the surrounding metal disk.
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