نتایج جستجو برای: anthracene derivatives
تعداد نتایج: 108664 فیلتر نتایج به سال:
Higher plants sampled from a moderately polluted exploration site were analyzed with gas chromatography-mass spectrometry to determine the occurrence and sources of polycyclic aromatic hydrocarbons (PAHs). The concentrations of the sum of 28 target PAHs (designated as Σ(28)PAH) in the leaves of higher plant samples ranged from 365 to 2870 μg/kg with an average of 1430 μg/kg. The majority of the...
Polycyclic aromatic hydrocarbons (PAHs) are known to exhibit photoinduced toxicity to organisms, especially in the presence of ultraviolet irradiation. Oxidation is the most common photochemical reaction of anthracene (ANT) and ANT derivatives. Quinones, hydroxy-quinones, diols, and aldehydes are the resultant products. Different ANT photoproducts have different impact on biological organisms. ...
The transformation of anthracene oil into pitch is a feasible procedure for obtaining pitches with binder and impregnating characteristics. Moreover, their high aromaticity, total absence of solid particles and good fluidity make anthracene oil-based pitches interesting precursors for graphitizable carbon materials (e.g., carbon fibres, synthetic graphites). To prepare this kind of material the...
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