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Journal articles on the topic 'Fluoranthenc'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

M., K. Rawat, and Sharma Mitali. "Investigations on polycyclic aromatic hydrocarbons (PAHs) in waste oil at Mathura-Agra, National Highway No. 2." Journal of Indian Chemical Society Vol. 85, May 2008 (2008): 539–41. https://doi.org/10.5281/zenodo.5816478.

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Department of Chemistry, Agra College, Agra-282 002, Uttar Pradesh, India Manuscript received 19 November 2007, accepted 21 January 2008 Polycyclic Aromatic Hydrocarbons (PAHs) are released into the environment from anthropogenic sources, such as combustion of refused burning, industrial process, electrical equipment. The concentration of PAHs in roadside oil-sludge was measured at outside of Mathura-Refinery, Delhi-Agra, National Highway No. 2, The samples were extracted with <em>n</em>-hexane by ultrasonic agitation and aromatic fraction analysis by GC. Total mean concentration of PAHs was f

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2

Vukicevic, Damir, Jelena Djurdjevic, and Ivan Gutman. "On the number of Kekulé structures of fluoranthene congeners." Journal of the Serbian Chemical Society 75, no. 8 (2010): 1093–98. http://dx.doi.org/10.2298/jsc091207077v.

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The Kekul? structure count K of fluoranthene congeners is studied. It is shown that for such polycyclic conjugated ?-electron systems, either K = 0 or K ? 3. Moreover, for every t ? 3, there are infinitely many fluoranthene congeners having exactly t Kekul? structures. Three classes of Kekul?an fluoranthenes are distinguished: (i) ?0 - fluoranthene congeners in which neither the male nor the female benzenoid fragment has Kekul? structures, (ii) ?m - fluoranthene congeners in which the male benzenoid fragment has Kekul? structures, but the female does not, and (iii) ?fm - fluoranthene congeners

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3

Yence, Merve, Dilgam Ahmadli, Damla Surmeli, Umut Mert Karacaoğlu, Sujit Pal, and Yunus Emre Türkmen. "Synthesis of acenaphthylene-fused heteroarenes and polyoxygenated benzo[j]fluoranthenes via a Pd-catalyzed Suzuki–Miyaura/C–H arylation cascade." Beilstein Journal of Organic Chemistry 20 (December 23, 2024): 3290–98. https://doi.org/10.3762/bjoc.20.273.

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Acenaphthylene-fused heteroarenes with a variety of five- and six-membered heterocycles such as thiophene, furan, benzofuran, pyrazole, pyridine and pyrimidine were synthesized via an efficient Pd-catalyzed reaction cascade in good to high yields (45–90%). This cascade involves an initial Suzuki–Miyaura cross-coupling reaction between 1,8-dihalonaphthalenes and heteroarylboronic acids or esters, followed by an intramolecular C–H arylation under the same conditions to yield the final heterocyclic fluoranthene analogues. The method was further employed to access polyoxygenated benzo[j]fluoranthe

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4

Vila, Joaquim, and Magdalena Grifoll. "Actions of Mycobacterium sp. Strain AP1 on the Saturated- and Aromatic-Hydrocarbon Fractions of Fuel Oil in a Marine Medium." Applied and Environmental Microbiology 75, no. 19 (2009): 6232–39. http://dx.doi.org/10.1128/aem.02726-08.

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ABSTRACT The pyrene-degrading Mycobacterium sp. strain AP1 grew in nutrient-supplemented artificial seawater with a heavy fuel oil as the sole carbon source, causing the complete removal of all linear (C12 to C40) and branched alkanes from the aliphatic fraction, as well as an extensive degradation of the three- and four-ring polycyclic aromatic hydrocarbons (PAHs) phenanthrene (95%), anthracene (80%), fluoranthene (80%), pyrene (75%), and benzo(a)anthracene (30%). Alkylated PAHs, which are more abundant in crude oils than the nonsubstituted compounds, were selectively attacked at extents that

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5

MUNTEAN, Nicoleta, Edward MUNTEAN, and Marcel DUDA. "Contamination of some Plant Origin Food Products with Polycyclic Aromatic Hydrocarbons." Bulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca. Agriculture 70, no. 2 (2013): 383–86. http://dx.doi.org/10.15835/buasvmcn-agr:9759.

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PolycyclicÂ aromaticÂ hydrocarbonsÂ (PAHs)Â areÂ organicÂ compounds primarilyÂ formedÂ by incomplete combustion of organic matter, widely distributed in the environment. The major aim of this research is to establish the degree of contamination of several plant origin food products available on theÂ marketÂ withÂ PAHs. 15Â fromÂ theÂ 16Â EnvironmentalÂ ProtectionÂ AgencyÂ priorityÂ PAHsÂ were assessed: naphthalene,Â acenaphtene,Â fluorene,Â phenanthrene,Â anthracene,Â fluoranthene,Â pyrene, benz(a)anthracene,Â chrysene,Â benzo(b)fluoranthene,Â benzo(k)fluoranthene,Â benzo(a)pyrene, dibenzo(a,h

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6

Ediagbonya, Thompson F., Felix A. Ikuesan, Akinsanmi M. Oyeyemi, Johnson A. Ogunjobi, and Opeyemi E. Omoyugbo. "The quantum of polycyclic aromatic hydrocarbon in <em>Pyxicephalus edulis</em> and sediments in Oluwa river, Igbekebo area, Ondo state, Nigeria." Ceylon Journal of Science 52, no. 3 (2023): 255–66. http://dx.doi.org/10.4038/cjs.v52i3.8205.

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Polycyclic aromatic hydrocarbons (PAHs) are organic compounds composed of two or more fused aromatic rings. PAHs can be found in a variety of foods and beverages, including drinking water, vegetables, fruits, cereals, oils, seafood, and meats. The current study investigated the pollution levels of the quantum of polycyclic aromatic hydrocarbon in Pyxicephalus edulis and river sediments. Twenty-five sediment samples and male and female specimens of Pyxicephalus edulis were collected from Oluwa River near Igbekebo, Ondo State Nigeria. The sediment samples were then dried in the open air for thre

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Laali, Kenneth K., Takao Okazaki, Sergio E. Galembeck, and Jay S. Siegel. "Persistent Oxidation Dications from Twisted Fluoranthenes, Benzo[k]fluoranthene and Dimethyldibenzo[j.l]fluoranthene: Charge Delocalization Mode, Tropicity, and Formation of Novel 8,8‘-Bifluoranthenyls. An NMR and Theoretical Study." Journal of Organic Chemistry 66, no. 26 (2001): 8701–8. http://dx.doi.org/10.1021/jo010571p.

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8

Tucker, Sheryl A., William E. Acree, Bongsup P. Cho, Ronald G. Harvey, and John C. Fetzer. "Spectroscopic Properties of Polycyclic Aromatic Hydrocarbons: Effect of Solvent Polarity on the Fluorescence Emission Behavior of Select Fluoranthene, Fluorenochrysene, Indenochrysene, and Indenopyrene Derivatives." Applied Spectroscopy 45, no. 10 (1991): 1699–705. http://dx.doi.org/10.1366/0003702914335139.

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Fluorescence emission behavior is reported for benz[def]indeno-[1,2,3hi]chrysene, fluoreno[2,3,4,9defg]chrysene, benz[def]indeno-[l,2,3qr]chrysene, dibenzo[a,e]fluoranthene, indeno[1,2,3cd]pyrene, naphtho[1,2b]fluoranthene, benzo[b]fluoranthene, fluoranthene, benzo-[ghi]fluoranthene, naphtho[2,1a]fluoranthene, naphtho[2,3b]fiuoranthene, benzo[k]fluoranthene, and benzo[j]fluoranthene dissolved in organic nonelectrolyte solvents of varying polarity. Results of these measurements are used to classify the various solutes as either probe or nonprobe molecules, depending upon whether measured emissi

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9

Kweon, Ohgew, Seong-Jae Kim, Richard C. Jones, et al. "A Polyomic Approach To Elucidate the Fluoranthene-Degradative Pathway in Mycobacterium vanbaalenii PYR-1." Journal of Bacteriology 189, no. 13 (2007): 4635–47. http://dx.doi.org/10.1128/jb.00128-07.

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ABSTRACT Mycobacterium vanbaalenii PYR-1 is capable of degrading a wide range of high-molecular-weight polycyclic aromatic hydrocarbons (PAHs), including fluoranthene. We used a combination of metabolomic, genomic, and proteomic technologies to investigate fluoranthene degradation in this strain. Thirty-seven fluoranthene metabolites including potential isomers were isolated from the culture medium and analyzed by high-performance liquid chromatography, gas chromatography-mass spectrometry, and UV-visible absorption. Total proteins were separated by one-dimensional gel and analyzed by liquid c

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10

Brotsman, V. A., N. S. Lukonina, A. V. Rybalchenko, et al. "Acenaphto[1,2-k]fluoranthene: Role of the Carbon Framework Transformation for Tuning Electronic Properties." Журнал физической химии 97, no. 7 (2023): 996–1010. http://dx.doi.org/10.31857/s004445372307004x.

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Acenaphtho[1,2-k]fluoranthene (1) is synthesized via tandem cyclization during the dehydrofluorination of 1,4-di(1-naphthyl)-2,5-difluorobenzene (2) on activated γ-Al2O3. Presence of residual hydroxyl groups in alumina reduce the yield of target product 1 because of the side hydrolysis of fluoroarenes with the formation a product of partial cyclization, 9-(1-naphthyl)fluoranthen-8-ol (1b). The formation of negative ions (NI) of compounds 1 and 2 in the gas phase is studied by means of dissociative electron attachment (DEA) spectroscopy. Long-lived molecular NIs 1 and 2 are registered at the th

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11

Saleh, Shaif M., Ahmed T. Ahmed, and Gawai K. R. "Biodegradation of Fluoranthene by Alkaliphilic and Neutrophilic bacteria." University of Aden Journal of Natural and Applied Sciences 20, no. 2 (2016): 315–29. http://dx.doi.org/10.47372/uajnas.2016.n2.a07.

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Two bacterial strains, alkaliphilic bacteria Bacillus badius D1 were isolated from alkaline Crater Lake, (Lonar), Buldana, M.S, India, and neutrophilic bacterial strain Lysinbacillus sphaericus DL8 from dye disposal area of textile industry, Ichalkaranji, India. Fluoranthene, a model four-rings polycyclic aromatic hydrocarbon was utilized as carbon and energy source by these bacteria. The degradation products of fluoranthene were isolated at every 12 hrs.. of incubation period. The generated metabolites were identified by using (GC-MS, FTIR and 1HNMR). Many metabolites of fluoranthene degradat

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12

Kummerová, M., and L. Váňová. "Chlorophyll fluorescence as an indicator of fluoranthene phototoxicity." Plant, Soil and Environment 53, No. 10 (2008): 430–36. http://dx.doi.org/10.17221/2197-pse.

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The effect of the short-time exposure (12, 24 and 48 h) of increasing concentration (0.1, 1 and 10 mg/l) of intact (FLT) and photo-modified (phFLT) fluoranthene on the chlorophyll fluorescence parameters (<i>F</i><sub>0</sub>, <i>F</i><sub>V</sub>/<i>F</i><sub>M</sub> and Φ<sub>II</sub>) in pea plants (<i>Pisum sativum</i> L. cv. Lantra) was investigated. Plants took up both forms of fluoranthene by two different ways, via roots or via leaves. The obtained results demonstrated a significant increase

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13

Kim, Hwan-Young, Ji-Eun Noh, Hee-Jo Baek, et al. "Altered Cellular Responses As Biomarkers for Fluoranthene Exposure to the Bone Marrow-Mesenchymal Stem Cells: Implications for Stem Cell-Based in Vitro Models That Help Determine the Associated Hematotoxicity." Blood 124, no. 21 (2014): 5976. http://dx.doi.org/10.1182/blood.v124.21.5976.5976.

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Abstract Background: Fluoranthene is a member of the polycyclic aromatic hydrocarbon family, comprising ubiquitous environmental pollutants and potent mutagens. Fluoranthene has been classified by the International Agency for Research on Cancer as a group 3 carcinogens, whose carcinogenicity has not been fully determined in humans. Moreover, the stem cell toxicity and global hematotoxicity associated with fluoranthene exposure have not been thoroughly studied in the bone marrow-mesenchymal stem cells (BM-MSCs). In this study, we determined whether fluoranthene-induced cellular responses could

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14

Brotsman, V. A., N. S. Lukonina, A. V. Rybalchenko, et al. "Acenaphto[1,2-k]fluoranthene: Role of the Carbon Framework Transformation for Tuning Electronic Properties." Russian Journal of Physical Chemistry A 97, no. 7 (2023): 1475–88. http://dx.doi.org/10.1134/s003602442307004x.

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Abstract Acenaphtho[1,2-k]fluoranthene (1) is synthesized via tandem cyclization during the dehydrofluorination of 1,4-di(1-naphthyl)-2,5-difluorobenzene (2) on activated γ-Al2O3. Presence of residual hydroxyl groups in alumina reduce the yield of target product 1 because of the side hydrolysis of fluoroarenes with the formation a product of partial cyclization, 9-(1-naphthyl)fluoranthen-8-ol (1b). The formation of negative ions (NI) of compounds 1 and 2 in the gas phase is studied by means of dissociative electron attachment (DEA) spectroscopy. Long-lived molecular NIs 1 and 2 are registered

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15

Wu, Pengfei, Long Zhou, Shuwei Xia, and Liangmin Yu. "Synthesis of luminescent cocrystals based on fluoranthene and the analysis of weak interactions and photophysical properties." Acta Crystallographica Section C Structural Chemistry 77, no. 9 (2021): 551–60. http://dx.doi.org/10.1107/s2053229621008652.

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A series of luminescent cocrystals with fluoranthene (C16H10) as the fluorophore and benzene-1,2,4,5-tetracarbonitrile (TCNB, C10H2N4), 2,3,5,6-tetrafluorobenzene-1,4-dicarbonitrile (TFP, C8F4N2) and 1,2,3,4,5,6,7,8-octafluoronaphthalene (OFN, C10F8) as the coformers was designed and synthesized. Structure analysis revealed that these layered structures were due to charge transfer, π–π interactions and hydrogen bonding. Density functional theory (DFT) calculations show that fluoranthene–TCNB and fluoranthene–TFP have charge-transfer properties, while fluoranthene–OFN does not, indicating that

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16

J.I., Nirmal Kumar, Megha Barot, and Shamiyan R. Khan. "Some Intermediate Bio-Transformants During Biodegradation of High Molecular Weight Phenanthrene and Fluoranthene by Cyanobacterial species – Aulosira Fertilissima Ghose." International Journal of Applied Sciences and Biotechnology 1, no. 3 (2013): 97–105. http://dx.doi.org/10.3126/ijasbt.v1i3.8232.

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The PAHs compounds are known to be carcinogenic, teratogenic, mutagenic and toxic to all living organism. Handful of literature is available on biodegradation of these compounds by bacteria and fungi, however, scanty work is done by using microalgae on biodegradation of these two PAHs. In this investigation, the efficiency of Aulosira fertilissima Ghose to remove fluoranthene (0.001gm.ml-1), phenanthrene (0.001gm.ml-1) and a mixture of both (each at concentration of 0.0005gm.ml-1) were evaluated for intermediate bio-transformants during biodegradation by using GCMS. The result showed that the

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17

Tucker, Sheryl A., William E. Acree, John C. Fetzer, et al. "Spectroscopic Investigation of Fluorescence Quenching Agents. Part III: Effect of Solvent Polarity on the Selectivity of Nitromethane for Discriminating between Alternant versus Nonalternant Polycyclic Aromatic Hydrocarbons." Applied Spectroscopy 47, no. 6 (1993): 715–22. http://dx.doi.org/10.1366/0003702934066875.

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To better assess the applicability of nitromethane as a selective quenching agent for alternant versus nonalternant polycyclic aromatic hydrocarbons in HPLC, TLC, and HPTLC analysis, we measured the effect that it has on the fluorescence emission behavior of 96 different polycyclic aromatic hydrocarbons dissolved in binary toluene/acetonitrile solvent mixtures. Results of these measurements revealed that the “selective quenching” rule is obeyed for the vast majority of PAHs, with the coronene derivatives being the only major exceptions. Fluorescence emission spectra are also reported for benzo

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18

Lahore, Santosh, Umesh Narkhede, Lucio Merlini, and Sabrina Dallavalle. "Total Synthesis of the Natural Product Benzo[j]fluoranthene-4,9-diol: An Approach to the Synthesis of Oxygenated Benzo[j]fluoranthenes." Journal of Organic Chemistry 78, no. 21 (2013): 10860–66. http://dx.doi.org/10.1021/jo401887t.

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19

Weyand, E. H., S. Patel, E. J. LaVoie, B. Cho, and R. G. Harvey. "Relative tumor initiating activity of benzo[a]fluoranthene, benzo[b]fluoranthene, naphtho[1,2-b]fluoranthene and naphtho[2,1-a]fluoranthene on mouse skin." Cancer Letters 52, no. 3 (1990): 229–33. http://dx.doi.org/10.1016/0304-3835(90)90191-y.

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20

Tucker, Sheryl A., and William E. Acree. "Excitation versus Emission Spectra as a Means to Examine Selective Fluorescence Quenching Agents." Applied Spectroscopy 46, no. 9 (1992): 1388–92. http://dx.doi.org/10.1366/0003702924123755.

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To ascertain whether fluorescence quenching is best studied with the use of excitation or emission spectra, and to expand our existing PAH spectral data file, we have recorded excitation spectra of benzo[b]perylene, dibenzo[hi,wx]heptacene, tetrabenzo[de,hi,mn,qr]naphthacene, perylene, benzo[a]fluoranthene, benzo[def]indeno[1,2,3hi]chrysene, naphtho[2,1a]fluoranthene, naphtho[2,3b]fluoranthene, benzo[k]fluoranthene, 2-azapyrene, naphtho[8,1,2hij]pyreno[9,10,1def]phthalazine, indeno[1,-2,3ij]isoquinoline, benzo(lmn][3,8]phenanthroline, and 7-methyldibenzo(b,def]chrysene at various nitromethane

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21

Rykała, Wojciech, Monika J. Fabiańska, and Dominika Dąbrowska. "The Influence of a Fire at an Illegal Landfill in Southern Poland on the Formation of Toxic Compounds and Their Impact on the Natural Environment." International Journal of Environmental Research and Public Health 19, no. 20 (2022): 13613. http://dx.doi.org/10.3390/ijerph192013613.

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Landfill fires pose a real threat to the environment as they cause the migration of pollutants to the atmosphere and water sources. A greater risk is observed in the case of wild landfills, which do not have adequate isolation from the ground. The aim of this article is to present the results of studies on the toxicity of waste from a fire in a landfill in Trzebinia (southern Poland). Both soil and waste samples were investigated. The samples were analyzed using the GC-MS method and the leachates using ICP-OES. A total of 32 samples of incinerated waste and soil were collected. The organic com

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22

Wu, Manli, Huining Xu, Ya Yu, and Lili Wang. "High performance liquid chromatography–tandem mass spectrometry for rapid and sensitive analysis of six polycyclic aromatic hydrocarbons in wastewater." Water Science and Technology 64, no. 2 (2011): 477–84. http://dx.doi.org/10.2166/wst.2011.710.

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A sensitive and fast method was developed to quantitatively analyse the six polycyclic aromatic hydrocarbons (fluoranthene (FLT), benzo[b]fluoranthene (BbF), benzo[k]fluoranthene (BkF), benzo[a]pyrene (Bap), benzo[ghi]perylene (BghiP) and indeno[1,2,3-cd]pyrene (INPY)) by high performance liquid chromatography (UPLC) coupling with tandem mass spectrometry (MS/MS). Chromatographic separation was performed on a Waters Acquity UPLCTM BEHC18 column (1.7 μm, 2.1 mm × 50 mm). A 0.2 μm precolumn filter was used to protect the analytical column. Mobile phase A was acetonitrile containing 0.5% toluene.

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23

Patel, Miral, JI Nirmal Kumar, and KK Tiwari. "Fluoranthene induced changes in photosynthetic pigments, biochemical compounds and enzymatic activities in two microalgal species: Chlorella vulgaris Beijerinck and Desmodesmus subspicatus Chodat." International Journal of Environment 3, no. 1 (2014): 41–55. http://dx.doi.org/10.3126/ije.v3i1.9941.

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The photosynthetic pigments, biochemical and enzymatic activities in two freshwater microalgal species, Chlorella vulgaris and Desmodesmus subspicatus at different fluoranthene concentrations were compared with the control conditions. During 16-days of incubation period when treated with fluoranthene, both microalgal species exhibited variable amount of photosynthetic pigment, biochemical compounds and enzymatic activities. The addition of fluoranthene at concentrations ranged from 1.5 mg l-1; to 10 mg l-1; to microalgal cultures led to changes in all different metabolites but the patterns var

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24

Trzesicka-Mlynarz, D., and O. P. Ward. "Degradation of polycyclic aromatic hydrocarbons (PAHs) by a mixed culture and its component pure cultures, obtained from PAH-contaminated soil." Canadian Journal of Microbiology 41, no. 6 (1995): 470–76. http://dx.doi.org/10.1139/m95-063.

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A mixed culture, isolated from soil contaminated with polycyclic aromatic hydrocarbons (PAHs), grew on and degraded fluoranthene in aqueous media supplemented with glucose, yeast extract, and peptone. Increased complex nitrogen levels in the medium promoted bacterial growth and a greater extent of fluoranthene degradation. Amendment of the media with high glucose levels also diminished specific fluoranthene degradation. The mixed culture was capable of degrading a range of other PAHs, including benzo[a]pyrene, anthracene, phenanthrene, acenaphthene, and fluorene. The mixed culture contained fo

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Imrigha, Nada Abusalah, Mohd Marsin Sanagi, and Sarra Younes Sharef. "Determination of polycyclic aromatic hydrocarbons in water using dispersive liquid-liquid microextraction-gas chromatography-mass spectrometric." Journal of Pure & Applied Sciences 21, no. 2 (2022): 68–71. http://dx.doi.org/10.51984/jopas.v21i2.1661.

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For the extraction of polycyclic aromatic hydrocarbons (PAHs) from water samples, a new sample preparation approach based on dispersive liquid-liquid microextraction (DLLME) was developed. In this procedure, a water sample was injected with a mixture of carbon tetrachloride, CCl4 (extraction solvent), and acetone (disperser solvent) to generate an emulsion in which the PAHs were extracted into fine droplets of extraction solvent. The impacts of several extraction parameters were explored, including extraction solvent type, disperser solvent type, extraction solvent volume, and disperser solven

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Minabe, Masahiro, Bongsup P. Cho, and Ronald G. Harvey. "Polycyclic fluoranthene hydrocarbons. Part 4. Electrophilic substitution of polycyclic fluoranthene hydrocarbons." Journal of the American Chemical Society 111, no. 11 (1989): 3809–12. http://dx.doi.org/10.1021/ja00193a008.

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Mitra, Sayani, Arnab Pramanik, Srijoni Banerjee, Saubhik Haldar, Ratan Gachhui, and Joydeep Mukherjee. "Enhanced Biotransformation of Fluoranthene by Intertidally Derived Cunninghamella elegans under Biofilm-Based and Niche-Mimicking Conditions." Applied and Environmental Microbiology 79, no. 24 (2013): 7922–30. http://dx.doi.org/10.1128/aem.02129-13.

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ABSTRACTThe aims of the investigation were to ascertain if surface attachment ofCunninghamella elegansand niche intertidal conditions provided in a bioreactor influenced biotransformation of fluoranthene byC. elegans. A newly designed polymethylmethacrylate (PMMA) conico-cylindrical flask (CCF) holding eight equidistantly spaced rectangular strips mounted radially on a circular disc allowed comparison of fluoranthene biotransformation between CCFs with a hydrophobic surface (PMMA-CCF) and a hydrophilic glass surface (GS-CCF) and a 500-ml Erlenmeyer flask (EF). Fluoranthene biotransformation wa

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Kim, Soo-Kang, and Jong-Wook Park. "Novel Fluoranthene Structure for Deep-Blue Organic Light-Emitting Diodes." Journal of Nanoscience and Nanotechnology 8, no. 9 (2008): 4787–92. http://dx.doi.org/10.1166/jnn.2008.ic69.

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As a new fluoranthene derivative, a synthesis of benzo[k]fluoranthene was suggested, so new blue emitting materials, 7,12-diphenylbenzo[k]fluoranthene [DPBF] and 7,8,10-triphenylfluoranthene [TPF] were synthesized. PLmax values of both compounds showed the wavelengths of 458 nm (TPF) and 434 nm, 453 nm (DPBF) that are in blue region. ELmax wavelength of the device using DPBF as an emitting layer was 436 and 454 nm in the deep-blue region, which are similar values with PL. The device that used DPBF as an emitting layer showed high efficiency of 2.11 cd/A and the excellent color coordinate value

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Barabashin, T. O., L. F. Pavlenko, G. V. Skrypnik, and T. L. Klimenko. "The polycyclic aromatic hydrocarbons in the water of the Black Sea studied during the research cruise no. 114 aboard the r/v “Professor Vodyanitsky” in 2020." IOP Conference Series: Earth and Environmental Science 937, no. 2 (2021): 022066. http://dx.doi.org/10.1088/1755-1315/937/2/022066.

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Abstract The content and composition of polycyclic aromatic hydrocarbons have been studied in the water column (surface layer, thermocline layer, at a depth of 500 m and the bottom layer) of the deep-water areas of the Black Sea near the Crimean Peninsula and the Caucasian coast, and the results are presented. The identified PAHs included naphthalene, 2-methylnaphthalene, phenanthrene, anthracene, fluoranthene, pyrene, triphenylene, chrysene, benz (b) fluoranthene, benz(k)fluoranthene, benz(a)pyrene, dibenz(a,h)anthracene, benzo(g,h,i)perylene. The concentrations of the total PAHs detected nea

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VISCIANO, PIERINA, MONIA PERUGINI, MICHELE AMORENA, and ADRIANA IANIERI. "Polycyclic Aromatic Hydrocarbons in Fresh and Cold-Smoked Atlantic Salmon Fillets." Journal of Food Protection 69, no. 5 (2006): 1134–38. http://dx.doi.org/10.4315/0362-028x-69.5.1134.

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The occurrence of polycyclic aromatic hydrocarbons (PAHs) in smoked fish as a consequence of cold smoking was studied. Raw fillets of Salmo salar from Norway or the Irish Sea were sampled in a modern smokehouse and examined for PAH content. The same fillets, labeled with an identification number, were sampled immediately after the smoking process and analyzed. Among the investigated compounds, acenaphthene, fluorene, phenanthrene, anthracene, fluoranthene, benz[a]anthracene, chrysene, benzo[b]fluoranthene, benzo[k]fluoranthene, benzo[a]pyrene, and benzo[ghi]perylene were detected in both raw a

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Haritash, A. K., and C. P. Kaushik. "Seasonal and Spatial Occurrence and Distribution of Respirable Particulate-bound Atmospheric Polycyclic Aromatic Hydrocarbons in Hisar City (India) and Their Potential Health-risks." Asian Journal of Water, Environment and Pollution 8, no. 1 (2011): 73–80. http://dx.doi.org/10.3233/ajw-2011-8_1_10.

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A group of nine PAHs was detected using HPLC in commercial, industrial and residential areas of Hisar city and their health effects were discussed. PAHs have detrimental biological effects, including acute and chronic toxicity, mutagenicity and carcinogenicity. An average of total PAHs in commercial, industrial and residential areas was found to be 1798.52, 2196.81 and 2474.13 μg/g, respectively. For seasonal changes, maximum variations were observed in monsoon followed by post-monsoon season, summer, autumn, and least in winter. Among the nine PAHs analysed, benzo(k)fluoranthene exhibited max

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Amigo, Susana González, Maria Asunción Lage Yusty, and Jesús Simal Lozano. "Determination of Polycyclic Aromatic Hydrocarbons from Buzzards (Buteo buteo) and Tawny Owl (Strix aluco) by Liquid Chromatography with Fluorescence Detection." Journal of AOAC INTERNATIONAL 85, no. 1 (2002): 141–45. http://dx.doi.org/10.1093/jaoac/85.1.141.

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Abstract Supercritical fluid extraction was applied to the determination of naturally contaminated polycyclic aromatic hydrocarbons (PAHs) in bird tissue by liquid chromatography with fluorescence detection (LC-FL). Recoveries (&gt;90%) and relative standard deviations (≤7.7%) were satisfactory. The levels of 10 PAHs were analyzed in 6 classes of tissues (heart, liver, intestine, muscle, lung, and kidney) of 10 buzzards and 2 tawny owls, predatory birds from the Galicia (northwest Spain). The PAHs found most abundantly were pyrene, fluoranthene, benzo[a]anthracene, and anthracene. Chrysene

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Cleij, T., A. Palmaerts, M. van Haren, L. Lutsen, and D. Vanderzande. "Poly(p-fluoranthene vinylene)." Synfacts 2006, no. 6 (2006): 0572. http://dx.doi.org/10.1055/s-2006-934514.

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Pothuluri, J. V., J. P. Freeman, F. E. Evans, and C. E. Cerniglia. "Fungal transformation of fluoranthene." Applied and Environmental Microbiology 56, no. 10 (1990): 2974–83. http://dx.doi.org/10.1128/aem.56.10.2974-2983.1990.

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Briant, C. E., and D. W. Jones. "7,8-Dimethoxybenzo[j]fluoranthene." Acta Crystallographica Section C Crystal Structure Communications 43, no. 4 (1987): 775–78. http://dx.doi.org/10.1107/s0108270187094150.

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Perez, Giorgio, and Mariarosa Raimondo. "Fluoranthene formation over zeolites." Chemosphere 32, no. 7 (1996): 1301–5. http://dx.doi.org/10.1016/0045-6535(96)00041-0.

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Sarobe, Martin, Judith D. Snoeijer, Leonardus W. Jenneskens, Martijn Q. Slagt, and Jan W. Zwikker. "Cyclopenta[cd]fluoranthene: Acefluoranthylene." Tetrahedron Letters 36, no. 46 (1995): 8489–92. http://dx.doi.org/10.1016/0040-4039(95)01747-6.

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Rubio, M., J. Sánchez-Marín, and E. Ortí. "Theoretical description of the fluoranthene-fluoranthene association using atom-atom pair potentials." Synthetic Metals 71, no. 1-3 (1995): 2081–82. http://dx.doi.org/10.1016/0379-6779(94)03176-7.

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Akomah-Abadaike, O. N., and O. B. Iwuji. "Comparative studies on Polyaromatic Hydrocarbons (PAHS) in some edible oil (shea butter, coconut oil and palm kernel oil) sold in Nigeria." Scientia Africana 20, no. 1 (2021): 49–56. http://dx.doi.org/10.4314/sa.v20i1.4.

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Polyaromatic hydrocarbons (PAHs) are ever-present lipophilic substances, having varying levels of concentration in edible oils. Shea butter, coconut oil and palm kernel oil are used in Africa as component of traditional ointment. The study evaluated the concentration of polyaromatic hydrocarbons in Shea butter, coconut oil and palm kernel oil using gas chromatography with flame ionization detector. The polyaromatic hydrocarbons identified and quantified are: napthalene, acenaphthene, fluorene, phenapthrene, fluoranthene, pyrene, chrysene for Shea butter samples; napthalene, acenaphthene, phena

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40

Godzik, Barbara, Grażyna Szarek-Łukaszewska, Paweł Kapusta, and Katarzyna Stępień. "PAHs Concentrations in Poland Using Moss Pleurozium Schreberi as Bioindicator." Polish Botanical Journal 59, no. 1 (2014): 137–44. http://dx.doi.org/10.2478/pbj-2014-0019.

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Abstract Concentrations of PAHs in the moss Pleurozium schreberi (Brid.) Mitt. were compared in three regions differing in degree of industrialization and urbanization: the Silesia-Cracow region (heavily polluted), Mazovia (moderately polluted) and Podlasie (northeast Poland, control area). Ten moss samples of moss were taken from each area. PAH concentrations were determined by HPLC. Total PAHs levels in P. schreberi varied depending on the region: mean 7350 (± 4075) ng kg−1 d. wt. for the Silesia-Cracow region, mean 2127 (± 1686) ng kg−1 d. wt. for Mazovia, and mean 838 (± 943) ng kg−1 d. wt

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Wu, Manli, Lili Wang, Huining Xu, and Yi Ding. "Occurrence and removal efficiency of six polycyclic aromatic hydrocarbons in different wastewater treatment plants." Water Science and Technology 68, no. 8 (2013): 1844–51. http://dx.doi.org/10.2166/wst.2013.433.

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Occurrence and removal efficiency of six polycyclic aromatic hydrocarbons (PAHs) (fluoranthene, benzo[b]fluoranthene, benzo[k]fluoranthene, benzo[a]pyrene, benzo[ghi]perylene and indeno[1,2,3-cd]pyrene) in wastewater were monitored at different treatment processes in three wastewater treatment plants (WWTPs) by using ultra performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS). Chromatographic separation was performed on a Waters Acquity UPLC BEHC18 column (1.7 μm, 2.1 mm × 50 mm). A 0.2 μm precolumn filter was used to protect the analytical column. The result indicated that (

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Kosheleva, N. E., E. M. Nikiforova, and N. B. Zhaxylykov. "Ecological and Geochemical Assessment of the State of Soils in the City of Baikalsk According to the Content of Polycyclic Aromatic Hydrocarbons." Почвоведение, no. 4 (September 19, 2024): 633–52. http://dx.doi.org/10.31857/s0032180x24040086.

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The pollution of the topsoils of the city of Baikalsk (Irkutsk region) under the influence of industrial emissions and wastes of the Baikal Pulp and Paper Mill (BPPM) was studied. The content of 16 individual PAH structures in samples of urban and background soils taken during the soil geochemical survey in the summer of 2019 was analyzed. Relatively low levels of PAH content were found in the lignin sludge from the BPPM and СHP ash. The concentration of total PAHs in CHP ash reaches 46 mg/ kg with a predominance of low molecular weight compounds (the proportion of naphthalene and its homologu

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Nowacka, Anna, and Maria Włodarczyk-Makuła. "The Coagulant Type Influence on Removal Efficiency of 5- and 6-Ring Pahs During Water Coagulation Process." Civil And Environmental Engineering Reports 13, no. 2 (2014): 63–73. http://dx.doi.org/10.2478/ceer-2014-0015.

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Abstract The article presents results on investigation of the removal efficiency of selected 5- and 6-ring polycyclic aromatic hydrocarbons (benzo[a]pyrene, benzo[b]fluoranthene, benzo[k]fluoranthene, benzo[j]fluoranthene, benzo[g,h,i]perylene, indeno[1,2,3-cd]pyrene, dibenzo[a,h]anthracene) from water during coagulation and sedimentation process. Two pre-hydrolyzed aluminum coagulants: PAX XL 19H and FLOKOR 105V were chosen for research. Process was carried out at optimum process parameters: rapid-mixing - 3 min at the rotational speed of 200 rpm, slow mixing - 10 min at 30 rpm, sedimentation

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Marjanovic, Nikola, Snezana Kravic, Zvonimir Suturovic, and Jaroslava Svarc-Gajic. "Determination of sensitivity limit in quantative analysis of polycyclic aromatic hydrocarbons by Gc-ms." Acta Periodica Technologica, no. 35 (2004): 111–19. http://dx.doi.org/10.2298/apt0435111m.

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The limit of detection (LOD) and the limit of quantitation (LOQ) for 16 individual PAHs from the Environmental Protection Agency (EPA) list (naphthalene, acenaphthylene, acenaphtene, fluorene, phenanthrene antrachene, fluoranthene, pyrene, benzo(a)anthracene, chrysene benzo(b)fluoranthene, benzo(k)fluoranthene, benzo(a)pyrene, dibenzo(a,h) anthracene, benzo(g,h,i)perylene and indeno(1,2,3-cd)pyrene) were determined by Gas Chromatography ? Mass Spectrometry (GC-MS). Determination was performed by SCAN (digital linear scanning) and SIM (selected ion monitoring) techniques preceded by the optimiz

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Cauich-Suárez, Loremy Yehudí, Víctor Emmanuel Sánchez-Sánchez, Gissela Moreno-Ortiz, Elsa Noreña-Barroso, and Gabriela Rodríguez-Fuentes. "Bioassays with Allium cepa for the Monitoring of Toxicity in the Groundwater of Yucatan, Mexico." Applied Sciences 14, no. 23 (2024): 11428. https://doi.org/10.3390/app142311428.

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This study employed the Allium cepa bioassay to evaluate the toxic effects of contaminants in the Yucatan aquifer. Seven monitoring wells were studied during September and October 2021. Nutrient concentrations showed significant variation between sites, with samples closer to the coast (P3 and P7) presenting higher ammonia and phosphate concentrations. The pesticides found at the highest concentration were δ-HCH and chlorpyrifos, with 141.44 and 175.92 ng/L, respectively. Heptachlor and aldrin were present in sites P4oct and P2sept. Interestingly, DDT values were highly correlated with caffein

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Sun, Chen, Ding, Liu, and Zhang. "Distribution Pattern, Emission Characteristics and Environmental Impact of Polycyclic Aromatic Hydrocarbons (PAHs) in Download Ash and Dust from Iron and Steel Enterprise." Molecules 24, no. 20 (2019): 3646. http://dx.doi.org/10.3390/molecules24203646.

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Download ash and emission dust samples were collected from sintering, coking, ironmaking and steelmaking processes of iron and steel enterprises in Laiwu. Sixteen kinds of polycyclic aromatic hydrocarbons (PAHs) in the United States Environmental Protection Agency (USEPA) priority controlled lists were quantitatively analyzed using Gas Chromatography-Mass Spectrometer (GC-MS). Laser particle size analyzer was used to obtain the distribution pattern of download ash. It was found that the diameter distribution pattern from four production processes was quite different. The proportion of fine par

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Ketata, Nahed, Linhao Liu, Ridha Ben Salem та Henri Doucet. "Mono or double Pd-catalyzed C–H bond functionalization for the annulative π-extension of 1,8-dibromonaphthalene: a one pot access to fluoranthene derivatives". Beilstein Journal of Organic Chemistry 20 (23 лютого 2024): 427–35. http://dx.doi.org/10.3762/bjoc.20.37.

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The Pd-catalyzed annulative π-extension of 1,8-dibromonaphthalene for the preparation of fluoranthenes in a single operation has been investigated. With specific arenes such as fluorobenzenes, the Pd-catalyzed double functionalization of C–H bonds yields the desired fluoranthenes. The reaction proceeds via a palladium-catalyzed direct intermolecular arylation, followed by a direct intramolecular arylation step. As the C–H bond activation of several benzene derivatives remains very challenging, the preparation of fluoranthenes from 1,8-dibromonaphthalene via Suzuki coupling followed by intramol

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Syahrir, Muhammad, Nurul Hidayat Aprilita, and Nuryono Nuryono. "VALIDASI METODE ANALISIS POLISIKLIK AROMATIK HIDROKARBON (PAH) DALAM SEDIMEN DI SEKITAR PANTAI MAKASSAR." Jurnal Kimia Terapan Indonesia 17, no. 1 (2015): 9–14. http://dx.doi.org/10.14203/jkti.v17i1.18.

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Validation of analysis method of PAH have been done in marine sediment of Macassar Coast by Gas Chromatography (GC-FID). Validation of method include: limit of detection (LoD), limit of quantification (LoQ) and linearity range. The results of validation method of 7 types PAHs (Naphtalene, Acenaphtene, Penanthrene, Fluoranthene, Pyrene, Benzo (a) Anthracene and perylene) give a linearity range between 0.5 to 20 ppm with an average linearity approaches a value of 1. LoD for Naphtalene; Acenaphthene; Penanthrene; Fluoranthene; Pyrene; Benzo (a) Anthracene; and Perylene are 3.541; 0.208; 1,736; 1.

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Sassu, Lorenzo, Laura Perezzani, William A. Ivancic, Russell H. Barnes, and Busolo Wa Wabuyele. "Oxygen Quenching Measurements for the S1 and S2 Fluorescence of Gas-Phase Fluoranthene." Applied Spectroscopy 55, no. 3 (2001): 307–10. http://dx.doi.org/10.1366/0003702011951704.

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The fluorescence emission of the fluoranthene molecule has been investigated at excitation wavelengths varying from 240 to 360 nm, and conducted from near collision-free conditions to atmosphericpressure conditions. The oxygen quenching rate for the fluorescence of the F1 band (S1 → S0 transition) of fluoranthene at 340 nm excitation wavelength was found to be 1 × 109 L mol−1 s−1. The quenching rate for the F2 band (S2 → S0 transition) was found to be 100-fold greater for the wavelength region investigated. The wavelength dependency of the oxygen-quenching constants of the two transitions was

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Sultana, Abida, Md Mazharul Islam, Mohammad Shoeb, Md Iqbal Rouf Mamun, and Nilufar Nahar. "Assessment of Polycyclic Aromatic Hydrocarbons in Urban Water Bodies: A Study of Rivers and Lakes in Dhaka, Bangladesh." Dhaka University Journal of Science 72, no. 2 (2024): 75–83. http://dx.doi.org/10.3329/dujs.v72i2.75474.

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Polycyclic aromatic hydrocarbons (PAHs) pose significant environmental and health risks due to their toxic properties,making their assessment in urban water bodies crucial. This study aims to evaluate the presence of three notable PAHs—anthracene, fluoranthene, and benzo[a]pyrene—in the surface water of three rivers (Buriganga, Meghna, and Turag) andtwo lakes (Hatirjheel and Gulshan) in Dhaka, Bangladesh. High-performance liquid chromatography with fluorescencedetector (HPLC-FD) was employed and validated for PAH determination, using solid phase extraction (SPE) withpreconditioned C-18 SPE car

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