Hi
I am making FTIR graphs in percent transmittance. I observed the change in broadness and dip of the peak. So when dip increases does that mean there is a decline in the intensity of band? Especially in 3600-3200 cm-1 region which usually corresponds to OH groups.
Noor Ul Ain
It is necessary to compare the areas of absorption bands. If the area under the absorption band increases, therefore the intensity of photon absorption by the molecules of the substance increases. And, conversely, if the area under the absorption band decreases, then the intensity of absorption decreases.
Yes Noor Ul Ain . The interaction between the OH groups and the incoming frequencies is significantly high, hence a decrease in the %transmittance values.
Satyasadhan Dowarah thank you for your guidance. So will I report it as increase in the broadness and intensity of the n absorption band after the interaction or decrease? this is confusing.
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