A note on in-situ fluorescence for detection of oil in water

Sørstrøm, S.E.

doi:10.1016/s0143-7127(85)90463-6

Cited by 5 publications

(2 citation statements)

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“…Fluorescence and inhibition were positively and strongly correlated overall (r = 0.856, p = 0.000774). Fluorescence was used as a proxy for hydrocarbon concentrations dissolved in seawater WAFs (Sørstrøm, 1985;Genders, 1988). Our solar-exposed WAFs had higher fluorescence than dark counterparts (excitation: 365 nm, emission: 410-600 nm, as per Ziervogel et al, 2014).…”

Section: Discussionmentioning

confidence: 99%

Acute inhibition of bacterial growth in coastal seawater amended with crude oils with varied photoreactivities

et al. 2023

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The increased potential for contamination of seawater by crude oils requires studies of bacterial biodegradation potential, but little is known of the differential negative impacts of oils on bacterial growth. No two wells generate chemically identical oils; and importantly, solar exposure of crude oil may differentially affect the bacterial response. Elucidating the role that sunlight plays on the potential toxicity of spilled crude oils is imperative to understanding how oil spills might affect microbes in the tropical and subtropical waters of Florida. This study examined light exposure of six different crude oils, and subsequent microbial responses to altered oils. Marine bacterioplankton heterotrophic activities were measured via3H-leucine incorporation after the addition of oils’ water accommodated fractions (WAFs) that were created under varied solar conditions. Inhibition of production increased with higher concentrations of WAFs, but dose-response trends varied among the oils. Increased solar exposure during WAF preparation generally led to more inhibition, but trends varied among oils. WAFs were also prepared under different parts of the solar spectrum. Solar-irradiated WAFs resulted in significant but variable acute toxicity vs. dark counterparts. Solar-induced toxicity was primarily a result of visible and not ultraviolet light exposure. Results indicate responses to oil spills are highly dependent on the source of the oil and solar conditions at the time and location of the spill. The data presented here demonstrate the importance of photochemical changes and oil source in modulating microbial activity and bioremediation potential.

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Section: Discussionmentioning

confidence: 99%

Acute inhibition of bacterial growth in coastal seawater amended with crude oils with varied photoreactivities

et al. 2023

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“…al, 2008). Exemplos de sua aplicação podem ser conferidos com destaque no auxílio de diagnósticos de doenças como neoplasias e cânceres nos tecidos biológicos (KURACHI, 2004;XIN-HUA, 2005, BORISOVA et al, 2014, na detecção de doenças e estresses em plantas (MAXWELL;JOHNSON, 2000;BAKER, 2008;RAZAVI et al, 2008), na caracterização de óleo e na contaminação de resíduos oleosos (EL-HUSSEIN, 2015;SORSTROM, 1985;KRAHENBUHL et al, 2018), no monitoramento de contaminação em carne de frango, porco e carneiro e na análise de queijos, leite e óleos comestíveis (COURROL e SAMAD, 2018;DUREK et al, 2016;METZGER, 2007), etc.…”

Section: Introductionunclassified

Desenvolvimento de um sistema embarcado para realização de estudos através da espectroscopia de fluorescência

Nogueira¹

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Primeiramente a Deus, por me acompanhar durante toda minha vida, amparando-me em momentos difíceis, permitindo-me enxergar as soluções e desenvolver habilidades para solucionar todas as dificuldades encontradas.À minha esposa, Andrea, pela enorme paciência, sempre me dando sua amizade e o seu amor, que servem de suporte e de incentivo para alcançar os meus objetivos. Aos meus pais, Zuelinda e Paulo, que me instruíram e me educaram, ensinando-me os valores necessários para a vida. Aos meus filhos, Paulo e a Maria, por todo o carinho e o amor que me oferecem, gerando a energia e a força necessária para buscar sempre o melhor. Aos amigos, Diego Soler, Marcos Miotti e Yuri Oda, que me esclareceram muitas dúvidas ao longo desse trabalho, a Lilian, e ao José Dirceu, que sempre se prontificaram em me ajudar na realização das medidas, nos detalhes da montagem e na calibração do sistema. Também aqueles que estão ou que passaram pelo LIEPO, principalmente o Leandro Boni, que junto ao pessoal da oficina mecânica me ajudaram com os desenhos mecânicos deste projeto. À professora Cristina Kurachi e ao professor Daniel Varela, que ofereceram a oportunidade de contribuir com esse trabalho.Ao professor Sebastião Pratavieira, por toda explicação e esclarecimento sobre os conceitos físicos envolvidos nesse trabalho e também pela grande ajuda durante a realização das medidas. Aos professores do programa de Pós-Graduação da Escola de Engenharia de São Carlos, pelo conhecimento oferecido durante as disciplinas na realização do curso de Mestrado.

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The use of flow-through techniques to determine sub-surface concentrations of oil

Hurford

Buchanan

1986

Oil and Chemical Pollution

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A note on in-situ fluorescence for detection of oil in water

Cited by 5 publications

References 0 publications

Acute inhibition of bacterial growth in coastal seawater amended with crude oils with varied photoreactivities

Acute inhibition of bacterial growth in coastal seawater amended with crude oils with varied photoreactivities

Desenvolvimento de um sistema embarcado para realização de estudos através da espectroscopia de fluorescência

The use of flow-through techniques to determine sub-surface concentrations of oil

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