Analyzing Samples
44 Agilent Cary 630 FTIR Spectrometer User’s Guide
Cleaning
To clean the 10 degree or 45 degree SRA in preparation for
analysis:
For the 10 degree SRA, ensure that the sampling window is free of
any debris or other matter that may cause interference with your
sample. Do not measure powdered samples or samples with
coatings that can fall into the accessory and contaminate the
mirrors inside the accessory.
For the 45 degree SRA, ensure that the transmission accessory
and sampling window are free of any debris or other matter that
may cause interference with your sampling.
CAUTION
Do not attempt to clean the mirrors within the Transmission accessory
compartment. Solvents and/or canned air may cause irreversible spectral
interferences, as well as damage the front surface mirrors. This can have a
detrimental effect on the throughput and performance of the system. Doing so
will void the warranty.
Collecting a background spectrum
To collect a background spectrum using the Transmission
accessory:
1 Place the material used for background measurements on the 10
degree or 45 degree SRA accessory sampling window. This is
commonly the gold coated mirror supplied with the accessory.
2 Collect a background spectrum. For instructions on collecting a
background using the software, refer to the Agilent MicroLab PC
Software User’s Guide.
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