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2.9. Fourier Transformation-Infrared Spectroscopy (FTIR) Analysis of Solid Samples
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FTIR spectra (600–4000 cm−1) were acquired for solid samples of pure PVP K29-32, PHE, and their composites. Data were collected using a Vertex 70 FTIR spectrometer (Bruker, Germany) with a single reflection and germanium crystal ATR accessory (MIRacle, PIKE Technologies, USA) purged under dry air to remove atmospheric water vapor. Background spectra of 128 scans at a resolution of 2 cm−1 were subtracted from the sample spectra [50].
Copyright and License information: ©2018 L. S. Usmanova et al.
This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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