Sentence examples for model compounds such from inspiring English sources
This review focuses on the degradation routes of biomass model compounds such as cellulose and lignin at near and supercritical conditions.
Although dimeric oxygen-bridged model compounds such as benzylphenyl ether and diphenyl ether can be readily converted to monomeric species in the presence of noble metal catalysts, cleavage of C C bonds in diphenyl methane and biphenyl was not observed.
Most of the research works have been carried out using model compounds such as guaiacol and phenol using moderately-highly acidic supports such as Al2O3, ZrO2 and TiO2 and active metals such as palladium, platinum, nickel and molybdenum.
The photocatalytic efficiency of prepared material was evaluated by monitoring the degradation of different organic model compounds such as RhB, MO, MB and 4-NP under visible light irradiation as a function of time.
The hydroprocessing of nitrogen-containing model compounds such as pyridine, quinoline, acridine, pyrrole and carbazole was studied using a batch method at 340°C and 70 bar H2 over sulphided NiO-MoO3/Al2O3 and NiO-WO3/Al2O3 catalysts, where it was found that saturation of the heteroaromatic rings always occurs prior to any cleavage of C-N bonds, generally Csp3-N bonds.
The optimized waveform allowed the sensitive and stable detection of model compounds, such as clenbuterol and caffeic acid, that showed detection limits of 0.1 μg L−1 and 14 μg L−1, quantification limits of 0.4 μg L−1 and 46 μg L−1, and linearity up to 100 μg L−1 (r = 0.9993) and 10 mg L−1 (r = 0.9998), respectively.
Poly-2 was confirmed to keep a prevailing helicity of backbone in solution by means of comparing the specific optical rotation, the CD and UV vis spectra with that of monomer 2 and the model compound such as (S -3-ethyl-2,2′-bis methoxymethoxy -1,1′-binaphthyl 3. The helical conformation of poly-2 waS -3-ethyl-2,2′-bis methoxymethoxy -1,1′-binaphthyl
Chemical heterogeneity of natural DOM compared to a simple model compound such as citric acid is a probable reason for the observed difference and suggests that citric acid may not be a representative analogue when modeling OC cycling in natural systems.
Pyridine-immobilized metalloporphine was found to be a much more performant catalyst, giving significantly higher conversion rates with all the tested substrates: a lignin-model compound such as veratryl alcohol, the lignin peroxidase well-known substrate azure B, and recalcitrant textile dyes such as alizarin red S, phenosafranine, methylene blue, methyl green, xylenol orange, and methyl orange.
Although ionic liquids have high distribution coefficient for model sulfur compounds, such as dibenzothiophene, in model mixtures, the distribution coefficient in real straight run distillate is rather low.
He et al. [26] studied the cleavage of aromatic ether linkages by a nickel catalyst in model lignin compounds, such as benzyl phenyl ether, 2-phenylethyl phenyl ether, and diphenyl ether, which contain β-O-4, α-O-4, and 4-O-5 bonds, respectively.
