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481
Multiple PAHs’ Detection under CDOM Interference Based on Excitation-Emission Matrix and Interval Selection
Published 2023-01-01“…Fluorescence technology is an effective tool for detecting polycyclic aromatic hydrocarbons (PAHs) in water. However, the accuracy of fluorescence detection is reduced by the spectral overlap of different PAHs and coexisting colored dissolved organic matter (CDOM). …”
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482
Effect of Attapulgite Nanorods and Calcium Sulfate Microwhiskers on the Reaction-Induced Phase Separation of Epoxy/PES Blends
Published 2013-01-01“…The influence of two kinds of mesoscale inorganic rod fillers, nanoscale attapulgite and micron-sized CaSO4 whisker, on the reaction-induced phase separation of epoxy/aromatic amine/poly- (ether sulfone) (PES) blends has been investigated by optical microscopy (OM), scanning electron microscopy (SEM), and time resolved light scattering (TRLS). …”
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483
SYNTHESIS OF THE ZSM-5 ZEOLITE WITH MIXTURES BINARY OF TETRAETHYLAMMONIUM HYDROXIDE AND AMINES AS ORGANIC STRUCTURE DIRECTING AGENTS
Published 2020-09-01“…Noteworthy is the zeolite ZSM-5 used as a catalyst in reactions in the areas of petrochemical and fine chemistry, such as cracking, isomerization, alkylation and aromatization reactions of olefins. In view of this, the objective of this work was to synthesize the ZSM-5 zeolite, through binary mixtures of tetraethylammonium hydroxide (TEAOH) and different amines (n-butylamine, isobutylamine and diisobutylamine) acting as organic structure directing agents (SDA's). …”
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484
Coordinated conformational changes in P450 decarboxylases enable hydrocarbons production from renewable feedstocks
Published 2025-01-01“…Furthermore, we demonstrate that the absence of the aromatic residue in the Phe-His-Arg triad preserves chemoselectivity for alkenes, providing a distinct perspective on the molecular determinants of decarboxylation activity. …”
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485
Solvent Effect on the Solid-Surface Fluorescence of Pyrene on Cellulose Diacetate Matrices
Published 2018-01-01“…The proposed method is promising for use in environmental monitoring of polycyclic aromatic hydrocarbons.…”
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486
Synthesis and Biological Activity of (Z) –n-(5-Benzylidene-4-oxo-2-substituted- phenylthiazolidin-3-yl)-5-((1, 3-dioxoisoindolin-2-yl)methyl)-2-hydroxybenzamide
Published 2010-01-01“…5-((1, 3-Dioxoisoindolin-2-yl)methyl-2-hydroxybenzohydrazide (1) undergoes facile condensation with aromatic aldehydes to afford the corresponding N'-substituted-phenyl-5-((1,3-dioxoisoindolin-2-yl) methyl)-2-hydroxybenzohydrazide (2a-h) in good yields. …”
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487
Molecular-level characterization of supraglacial dissolved and water-extractable organic matter along a hydrological flow path in a Greenland Ice Sheet micro-catchment
Published 2025-01-01“…We find a decrease in the relative abundance of aromatic formulae from surface ice (24.9 <span class="inline-formula">±</span> 2.8 %) to weathering crust meltwater (3.5 <span class="inline-formula">±</span> 0.3 %) to supraglacial stream water (2.2 <span class="inline-formula">±</span> 0.2 %), pointing towards photodegradation of aromatic DOM during supraglacial meltwater transit. …”
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488
Fluorescence, Decay Time, and Structural Change of Laser Dye Cresyl Violet in Solution due to Microwave Irradiation at GSM 900/1800 Mobile Phone Frequencies
Published 2012-01-01“…They usually consist of an extended system of conjugated double or aromatic π-bonds with attached auxochromic (electron donating) groups shifting the absorption band further towards longer wavelength. …”
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489
Occurrence and Assessment of Chemical Contaminants in Drinking Water in Tunceli, Turkey
Published 2013-01-01“…The objective of this study was to analyze drinking water samples from 21 sites in the city center and seven municipalities of Tunceli, Turkey, in order to determine the presence of nitrate, nitrite, fluoride, bromate, pesticides, polycyclic aromatic hydrocarbons (PAHs), trihalomethanes (THMs), and some other chemicals. …”
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490
Analysis of Mesquite (Prosopis juliflora) Protein Concentrate for Possible Use as Supplementary Protein
Published 2022-01-01“…However, mesquite covers the requirements of essential amino acids, surpassing 31% of the protein required in adults, except for cysteine sulfur amino acids and aromatic amino acids. In other age groups such as children, mesquite had a high content of histidine, which is necessary and considered essential during infant development. …”
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491
Particulate Matter-Induced Acute Coronary Syndrome: MicroRNAs as Microregulators for Inflammatory Factors
Published 2021-01-01“…However, little is known about miRNA responses to fine PM (PM2.5, PM10, ultrafine particles, black carbon, and polycyclic aromatic hydrocarbon) from air pollution and their potential contribution to cardiovascular consequences, including systemic inflammation regulation. …”
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492
Chromatographic and spectroscopic studies on β-cyclodextrin functionalized ionic liquid as chiral stationary phase: Enantioseparation of NSAIDs
Published 2018-02-01“…Recently, we reported a new chiral stationary phase prepared using β-cyclodextrin functionalized with aromatic ionic liquid which is aimed to enhance the performance of enantioseparation of flavonoids and β-blockers. …”
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493
Imidazole: Having Versatile Biological Activities
Published 2013-01-01“…Being a polar and ionisable aromatic compound, it improves pharmacokinetic characteristics of lead molecules and thus is used as a remedy to optimize solubility and bioavailability parameters of proposed poorly soluble lead molecules. …”
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494
Study of physiochemical properties of trisubstituted pyrazole derivatives using polar aprotic solvents
Published 2025-01-01“…Abstract Pyrazole derivatives are aromatic heterocyclic compounds endowed with multifaceted applications. …”
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495
Guest-induced structural transformation of single-crystal 3D covalent organic framework at room and high temperatures
Published 2025-02-01“…Notably, COF-300 can maintain its single-crystal structure even at 280 °C and efficiently absorbs polycyclic aromatic hydrocarbons in their molten state. The kinetics of structural transformations among conformational isomers are investigated by combining PXRD and theoretical calculations. …”
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496
Distance and degree based topological characterization, spectral and energetic properties, and 13C NMR signals of holey nanographene
Published 2025-04-01“…Cycloarenes represent a class of polycyclic aromatic compounds distinguished by their intricate molecular structures, where multiple benzene rings are fused together to form macrocyclic frameworks. …”
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497
Synthesis of Symmetrical and Asymmetrical Azines Encompassing Naphtho[2,1-b]furan by a Novel Approach
Published 2011-01-01“…The reaction of 3-nitro-2-acetylnaphtho[2,1-b]furan (2) with hydrazine hydrate produced corresponding hydrazone (3) in excellent yield, which on treatment with various aromatic aldehydes under different reaction conditions resulted in the formation of symmetrical azines (4a-e) and unsymmetrical azines (5a-e). …”
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498
Catalyst-controlled directing group translocation in the site selective C–H functionalization of 3-carboxamide indoles and metallocarbenes
Published 2025-01-01“…Mechanistic experiments indicate a concerted 1,2-acyl migration step and indole metallation occurring through an electrophilic aromatic substitution process.…”
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499
Towards sustainable solutions: Comprehensive review of advanced porous materials for CO₂ capture, hydrogen generation, pollutant degradation, and energy application
Published 2025-03-01“…Recently, there have been significant developments in advanced porous materials, especially with types like porous organic polymers, metal-organic frameworks, hydrogen-bonded organic frameworks, covalent organic frameworks, zeolites, and porous aromatic frameworks. These materials are gaining attention for their remarkable characteristics, including high surface area, adjustable pore sizes, strong adsorption capacity, stability under various conditions, effective catalytic properties, and good electrical conductivity, making them useful across a range of applications. …”
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500
Impact of Hop Residue Reuse on the Chemical and Sensory Properties of Craft Beer
Published 2024-12-01“…Hops are an important component of beer brewing, providing aromatic and bittering properties that are essential to consumer appeal. …”
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