FTIR required training

This video shows the Varian 3100 FTIR setup in the Materials Characterization Lab at the University of Utah. It goes over the setup and operation of the machine, and is required as a first step for those wishing to use the machine in the lab.
*This video was created with the sole intent to train clients of the MCL in the proper use and standard operating procedures used in the lab. It does not represent the views of the machine's manufacturer or any other party.

[@learneverything9271]

Thanks you so much such valuable demo... Buddy... Take care of yourself.... Have a good day

[@mahmoudsorour2028]

Using the same logic as in 36:40 for the KBr methods, I should use the background as the reference KBr pellet to subtract this KBr info from all next sample, right?

[@materialscharacterization4168]

Yes, that's what many choose to do. Some do prefer to do the subtraction themselves, so they'll run empty as the background, then run the reference KBr pellet as sample 1, then run the sample KBr pellets. I find that to be more work for an equal return, but it's up to the researcher.

[@Will_be_back_by_2024]

Nice job. I think it would make more sense to recollect the background if you decided to change the aperture for some reason. Also, does it matter that your background is 32 scans while the sample is 64 scans?

[@materialscharacterization4168]

Thanks for your question! The purpose of running multiple scans to co-add is to reduce noise and increase the signal-to-noise ratio. In some cases where the results are being observed by a governing body (for example the FDA), they might require that the background and the samples have the same number of scans to co-add. However, we have found that it makes little to no functional difference in the research conducted in our lab.

[@ryandoeren6638]

IR is an instrument, not a machine