Research Article

Dynamic Localized SNV, Peak SNV, and Partial Peak SNV: Novel Standardization Methods for Preprocessing of Spectroscopic Data Used in Predictive Modeling

Figure 1

FTIR spectra of ATF. (a) Raw full transmission spectra without any preprocessing. The two data sets with different measurement setups can be discriminated by eye. The blue spectra originate from measurement type (1) with two KBr discs separated by a Teflon spacer, and the red set of curves originates from the cuvette measurement (2). (b) SNV-transformed transmission spectra after truncation of the saturated C-H vibrational regions and CO2 areas and (c) SNV-transformed absorbance spectra after truncation.