Absorption bands on electronic spectra

[TheTourist]

I have several electronic spectra for different cobalt complexes which I need to analyse. I am fine with finding \lambdamax and the molar absorption coefficient etc. However it also asks me to mark absorption bands on the printout and tabulate \lambdamax values and absorbance values for these bands. I am unsure on how this should be done and where to mark the bands.

 

[chemisttree]

Are these spectra UV/VIS? Mark the bands at the top of the peak. Shown http://www.cem.msu.edu/~reusch/VirtualText/Spectrpy/UV-Vis/spectrum.htm", for example.