Analysis and Identification of Raman Spectra of Microplastics
Z-score normalisation
Peaks identification
Removal of spectral region
Savitzky–Golay smoothing
Align spectra with different spectral resolution
Identification of multiple spectra identification based on Pearson cor...
Spectrum identification based on Pearson correlation coefficient
Min-max normalisation
Identification of multiple spectra identification based on Euclidean d...
Spectrum identification based on Euclidean distance
Pre-processing and polymer identification of Raman spectra of plastics. Pre-processing includes normalisation functions, peak identification based on local maxima, smoothing process and removal of spectral region of no interest. Polymer identification can be performed using Pearson correlation coefficient or Euclidean distance (Renner et al. (2019), <doi:10.1016/j.trac.2018.12.004>), and the comparison can be done with a user-defined database or with the database already implemented in the package, which currently includes 356 spectra, with several spectra of plastic colorants.