Thermo Scientific Nicolet iS50 User Manual page 24

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iS50 ATR Module

iS50 ATR Module User Guide

Figure 11. Typical background spectrum taken with the iS50 ATR module

Note that the diamond crystal typically absorbs between 2300 cm

The sample spectrum shows the change in infrared energy (the background energy has been

removed). This is an example of the type of spectrum you might obtain using the iS50 ATR

module.

Note This spectrum is only an example. The spectra produced from your experiments

may vary greatly, depending on the sample material and preparation.

Figure 12. Spectrum of isopropanol collected using the iS50 ATR module

Note that absorptions from the diamond crystal appear in the sample spectrum as low level

-1

noise between 2300 cm

absorptions that occur in that region. See the section titled "Typical ATR Sample Spectrum"

"Tips for ATR

Sampling" for more information.

Diamond band

-1

and 2000 cm

and may mask or interfere with any sample

-1

and 2000 cm

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