Identification of sample using FTIR

[@kalidousissoko3432]

wa aleykoum salam, thanks it's helpful

[@cerenbayar6698]

Thank you so much!

[@アブダラファトマ]

Alsalamu Alikum, Thank you very much. this is very useful. I have a questions, after collecting the background, what should I do with the background spectrum?

[@shirwansany]

Walaikumsalam. Here is my practice: 1. Collect the background's spectrum 2. Collect the sample's spectrum. 3. Deduct the background's spectrum from the sample's spectrum to get the actual spectrum. Usually, I set these activities to be the default setting of the FTIR spectrocopy so that I don't have to manually deduct the background's spectrum.

[@アブダラファトマ]

@@shirwansany Thank you for your prompt response. I find it difficult to know the settings from which I can set the automatic subtraction of background spectra from the samples. Also, I am worried that if I use the subtraction tool after measuring, the background would be subtracted twice. It is strange to me that non of the available information about OMNIC even the one shared by the maker talks about the subtraction of the background. Please teach us more about it when you have time.

[@jabedbinkashem796]

please tell me how to identify the sample using ftir curve in Originpro.....

[@afifirfan8741]

hi salam, can absorbance be used to identify the material used ? whats the difference between absorbance and transmittance

[@shirwansany8706]

Salam Irfan, both absorbance and transmittance could be used to identify the material fingerprinting and functional groups. FTIR records both of them. Absorbance and transmittance have an inverse relationship.

[@totallynotturtle]

thank you :)