Abstract
We conducted a meta-content analysis of FTIR (Fourier Transform Infra-red) spectroscopy methods and application throughout five journals, and evaluated variation present in FTIR-ATR spectra across original data sets from bone samples from distinct archaeological contexts. The meta-analysis revealed a lack of standardization and consistency in methodology and reporting for FTIR practices. Results suggest wavenumbers used for calculating IRSF and C/P in addition to baseline correction impact interpretations of bioapatite preservation. We recommend that FTIR spectra should always be baseline corrected and analyzed in absorbance (A). We also recommend consistent reporting of methods to demonstrate data fidelity prior to interpretation.
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