Acid And Neutral Biomarkers
Mostrando 1-6 de 6 artigos, teses e dissertações.
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1. Defesas antioxidantes e alterações bioquímicas no pacu, Piaractus mesopotamicus (Holmberg, 1887), em resposta à exposição ao cobre, à hipóxia e ao meio ácido, isolados ou associados
Copper sulfate (CuSO4) is widely used in aquaculture. Exposure to this compound can be harmful to fish, resulting in oxidative metabolism alterations and gill tissue damages, prejudicing the respiratory gasses exchange. Pacu, Piaractus mesopotamicus, (Wt = 43,4 3,35 g) were distributed in experimental tanks (n = 10; 180 L) and exposed for 48 h to control (wi
Publicado em: 2008
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2. Synthesis and identification of biomarkers in oils of the Campos and Potiguar Basin: identification of 3-alkyl-steranes / Sintese e identificação de biomarcadores em oleos da Bacia de Campos e Bacia Potiguar : identificação de 3-alquil-esteranos
This work reports an investigation using oils from Campos (southem Brazil) and Potiguar (northeastem Brazil) Basins which are the two most important petroleum producer basins in the country. The main focus in this research was the analysís of neutral and acidic biomarkers as indicators of biodegradation. Consequently, we have selected oils samples originate
Publicado em: 2005
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3. Estudo geoquimico de oleos do Campo de Marlim, Bacia de Campos, sintese de biomarcadores esteranos aromaticos
This thesis presents the geochemical study of three oil samples: PCM1, PCM2 e PCM3, all pertaining to the Marlin Field located in the Campos Basin, Rio de Janeiro and were generated by saline lacustrine source rocks. The crude oils were studied by the gas chromatography coupled whith mass spectrometry (GC/MS technique), and standards were used in this resear
Publicado em: 2003
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4. Estudo geoquimicos com evidencias paleoambientais, maturação e biodegradação dos oleos de diferentes origens da Bacia Potiguar, Brasil : sintese de biomarcadores de esterois / Paleoenvironment, maturation and biodegradation studies of oils collected from differents souces in the Potiguar Basin, Brazil : and biomarkers synthesis from sterols
In this work, will be presented the results of the organic geochemistry study oils of the samples with oils, and two lacustrine freshwater (LAD) and two mixed (M), both of fields near the terrestian cost, and two marine evaporitic oils (ME) of fields located approximately 55 km from the litoral coast. All samples collected from over Estreito-Guamare, Potigua
Publicado em: 2003
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5. Biomarcadores acidos da bacia Sergipe-Alagoas e estudos sinteticos de esteranos monoaromaticos
This research work has ultimate objective of addressing three issues. The first issue envolves the investigation of acidic biomarkers present in 10 oil samples of Carmopolis oil Field of Sergipe-Alagoas Basin, which have a marine-evaporitic origin. The main classes of carboxylic acids biomarkers which were characterized as their methyl ester or their deuteri
Publicado em: 2000
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6. Detalhes da historia geologica de Campo de Albacora - Bacia de Campos a partir de biomarcadores acidos
The GC/MS biomarker analyses of eight oils from Albacora Field - Campos Basin(RJ), revealed that the acidic fossil molecules are sensitive to geological phenomena connected with the formations of the reservoirs. It was sugggested some years ago that the reservoirs in Albacora Field were mixtures of two oil pulses of different thermal evolution. This hypothes
Publicado em: 1996