Analyzing Samples
42
Agilent 5500 Series FTIR Operation Manual
NOTE
Only use soft cotton cloth, such as that found on cotton swabs, or a suitable
substitute to clean the optical sensor and sampling area.
CAUTION
The windows are made of an IR-transmitting material called zinc selenide (ZnSe).
ZnSe is a relatively durable material, but can be easily scratched or damaged if
too much pressure is applied during cleaning, or if an abrasive material such as
Kimwipes is used. Materials such as cotton swabs dipped in acetone are
recommended for cleaning (see Figure 12).
Figure 12.
Cleaning the Position 3 window and sample substrate
CAUTION
ZnSe is relatively chemically-resistant to materials with a pH range between 4
and 9, but there are some materials, such as strong acids or heavily basic
materials, that can harm ZnSe. Avoid having materials in contact with the ZnSe
that are outside of this recommended pH range.
CAUTION
Do not break the spectrometer seal and attempt to clean interior surfaces.
Breaking the seal will void the warranty.
Summary of Contents for 5500a
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