Please check the below given link and PDF attachments.

https://www.researchgate.net/publication/249655932_FT-IR_Spectroscopy_of_Organic_Matter_in_Tropical_Soils_Changes_Induced_through_Deforestation

Article FT-IR Spectroscopy of Organic Matter in Tropical Soils: Chan...

https://www.osapublishing.org/viewmedia.cfm?id=122465&seq=0

Thanks for all the help.

FTIR is a technique which is used to obtain an infrared spectrum of absorption or emission of a solid, liquid or gas. An FTIR spectrometer simultaneously collects high spectral resolution data over a wide spectral range. In tropical soil it can be used to determine the functional groups present in the compound and to compare the individual components. It converts raw data into the actual spectrum. It can also be used to identify the molecular components and structures.

It determines the chemical functional groups present in the soil.Different functional groups absorb different IR frequencies. Further it gives an indication which functional group is involved in breaking down and absorption of  particles. You can also identify the reaction components and kinetic studies of reaction. Analysis of formulations such as insecticides and co-polymers. You may also can detect the molecular impurities.

With the FTIR it is possible to identify organomineral bonds?

Dr. Souza, FTIR identifies and qualifies sensitivity to mineral and organic bonds that compose soil minerals and organic matter. To know the limitations and potential you may go through the attached file.