Asked by Emily

Higher to noise ratios can be achieved in FTIR spectra compared to spectra from dispersive IR instruments. How is such a useful feat achieved in FTIR
Answered by DrBob222
You can read this site.

http://chemistry.oregonstate.edu/courses/ch361-464/ch362/irinstrs.htm

Part way down the first page you see the following:

<b>All of the source energy gets to the sample, improving the</b><i> inherent signal-to-noise ratio.</i>

<b>The digitization and computer interface allows </b><i>multiple scans to be collected, also dramatically improving the signal-to-noise ratio.</i>


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