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Classification and identification of Rhodobryum roseum Limpr. and its adulterants based on fourier-transform infrared spectroscopy (FTIR) and chemometrics

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  • Zhen Cao
  • Zhenjie Wang
  • Zhonglin Shang
  • Jiancheng Zhao

Abstract

Fourier-transform infrared spectroscopy (FTIR) with the attenuated total reflectance technique was used to identify Rhodobryum roseum from its four adulterants. The FTIR spectra of six samples in the range from 4000 cm−1 to 600 cm−1 were obtained. The second-derivative transformation test was used to identify the small and nearby absorption peaks. A cluster analysis was performed to classify the spectra in a dendrogram based on the spectral similarity. Principal component analysis (PCA) was used to classify the species of six moss samples. A cluster analysis with PCA was used to identify different genera. However, some species of the same genus exhibited highly similar chemical components and FTIR spectra. Fourier self-deconvolution and discrete wavelet transform (DWT) were used to enhance the differences among the species with similar chemical components and FTIR spectra. Three scales were selected as the feature-extracting space in the DWT domain. The results show that FTIR spectroscopy with chemometrics is suitable for identifying Rhodobryum roseum and its adulterants.

Suggested Citation

  • Zhen Cao & Zhenjie Wang & Zhonglin Shang & Jiancheng Zhao, 2017. "Classification and identification of Rhodobryum roseum Limpr. and its adulterants based on fourier-transform infrared spectroscopy (FTIR) and chemometrics," PLOS ONE, Public Library of Science, vol. 12(2), pages 1-14, February.
    • Handle: RePEc:plo:pone00:0172359
    DOI: 10.1371/journal.pone.0172359
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    1. Daniela Losacco & Claudia Campanale & Marina Tumolo & Valeria Ancona & Carmine Massarelli & Vito Felice Uricchio, 2022. "Evaluating the Influence of Nitrogen Fertilizers and Biochar on Brassica oleracea L. var. botrytis by the Use of Fourier Transform Infrared (FTIR) Spectroscopy," Sustainability, MDPI, vol. 14(19), pages 1-13, September.

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