Thank you so much for providing an example- I now understand the steps I should take and have started looking up what bonds the peaks I have identified are assigned to.
With this information, I would like to make a figure that both combines the identification of bonds/ peak correspondence with the inferred ions. I have done much research since reading your comment and have found a large amount of literature supporting the identification of these spectral peaks in bone with v1,v2,v3, and v4 of the PO43- ion and the v2 and v3 of the CO32- ion (noted to be derived from curve fitting analysis, their assignments, peak deconvolution, and supplemental ultrastructural studies).
As the point of my analysis is measuring these peaks strictly in a known material (bone) for inferring the degree of heat transformation, and not the identification of the substance, I think it is reasonable to make a single figure that communicates the whole package. Previously I suppose archaeologists just directly labeled the spectra with the inferred ions, and this was the nomenclature I became familiar with.
If anyone has an additional moment, I would like to ask advice on the best way to create this figure concisely so it can be understood by both a Chemistry and Archaeological audience.
My original figure in my report looks like figure 2 from Paschalis et al. (1996) -https://link.springer.com/content/pdf/10.1007/BF00369214.pdf.
Ideally I would like to create one figure of a complete spectra with: wavenumbers (cm-1), the identified bonds corresponding to peaks, and the inferred ions. I am thinking of stacking the information above the spectra, with a side bar identifying the chemical bonds and inferred ions (the PO43- ion and the CO32- ion with their vibrational modes). I have not seen a figure like this in my literature review.
I am having trouble thinking of the language I would use to identify the ions- "Attributable ions"? I have seen in the literature authors pointing to the "CO32- v2 band" for example, but I do not know if this is the correct way to use 'bands', as my understanding now is that the characteristic bands are functional groups seen through the intensity and position of peaks.
I really appreciate your patience and time. This has been extremely useful for me, and definitely will be following up on basic IR texts after I complete this report with a new figure and adjusted language in my text and tables. Really, thank you, all!