Hello everyone

I wondered if someone can help me analyze these FTIR results.

I read some IR-frequencies tables such as those I attached yet all of them contains ranges. For example, 3200-3600 (cm-1) is related to Alcohol (O-H) on the other hand, as you see in my IR results, I want to know (for instance) 3424 is related to which exact functional group.

 P.S: 

There are two IR results below:

1: FMWCNT = Functionalized multiwalled carbon nanotubes 

2: MWCNT = multiwalled carbon nanotubes 

http://www2.ups.edu/faculty/hanson/Spectroscopy/IR/IRfrequencies.html