Assertion: crude lignin | /r/HasProperty | separated by rvet
Facets:
value: from phl
type: LOCATION
Source sentences:
text: The crude lignin separated by RVET could be justified as p-hydroxyphenyl (H) -syringyl (S)
text: Thermogravimetric analysis (TGA) showed that the maximum thermal decomposition temperatures and the final carbon residues of crude lignin separated by RVET and AT were 520 °C, 5.26%, and 470 °C, 27.92%, respectively.
text: The crude lignin separated by RVET could be justified as p-hydroxyphenyl (H) -syringyl (S)
text: Thermogravimetric analysis (TGA) showed that the maximum thermal decomposition temperatures and the final carbon residues of crude lignin separated by RVET and AT were 520 °C, 5.26%, and 470 °C, 27.92%, respectively.
text: The separated acid and evaporative precipitate, as crude lignin separated by AT and RVET from PHL, respectively, were compared and characterized by Fourier transform infrared spectroscopy (FTIR), 1H-NMR spectroscopy, thermogravimetric analysis (TGA), and pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS).
text: The FTIR spectra of acid and evaporative precipitate, as crude lignin separated by AT and RVET from PHL, respectively, are presented in Fig. 1, and the assignments are listed in Table 3 in accordance with previous papers (Buta et al. 1989; Jahan and Mun 2007; Zheng et al. 2012; Yang and Jahan 2013; Zhao et al. 2014; Constant et al. 2015; Li 2016).
text: FTIR spectra of the acid and evaporative precipitate, as crude lignin separated by AT and RVET from PHL, respectively
text: As shown in the evaporative precipitate spectra, higher intensity of the bands at 1220 cm-1 and 1330 cm-1 than 1269 cm-1 and 1035 cm-1, respectively, compared with the lowest intensity of the band at 1156 cm-1 indicated the highest syringyl unit content and the lowest p-hydroxyphenyl unit content in crude lignin separated by RVET.
text: 1H-NMR spectra of the acid and evaporative precipitate, as crude lignin separated by AT and RVET from PHL, respectively
text: As shown in the evaporative precipitate spectra, the crude lignin separated by RVET could be justified as HSG lignin, which was indicated by signals at 7.49 ppm to 7.76 ppm, 6.59 ppm to 6.78 ppm, and 7.20 ppm, respectively, and the conjugated carbonyl (9.53 ppm to 9.78 ppm) was also found in it.
text: The crude lignins separated by RVET and AT, being justified as HSG and S lignin, respectively, were also supported by the aforementioned FTIR spectra.
text: TGA/ DTGA curves of acid and evaporative precipitate, as crude lignin separated by AT and RVET from PHL, respectively
text: Thermogravimetric analysis (TGA) results showed that the maximum thermal decomposition temperatures and the final carbon residues of crude lignin separated by RVET and AT were 520 °C, 5.26%, and 470 °C, 27.92%, respectively.