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Desenvolvimento de método analítico para determinação do teor de etanol em óleo lubrificante usado proveniente de motores ciclo Otto
(Universidade Estadual Paulista (Unesp), 2010-12-20)
Os óleos lubrificantes exercem papel fundamental no funcionamento dos motores automotivos, pois, além de reduzir o atrito entre as peças, ainda as protegem contra a corrosão. Entretanto, o desempenho do óleo lubrificante ...
Desenvolvimento de método analítico para determinação do teor de etanol em óleo lubrificante usado proveniente de motores ciclo Otto
(Universidade Estadual Paulista (Unesp), 2010-12-20)
Os óleos lubrificantes exercem papel fundamental no funcionamento dos motores automotivos, pois, além de reduzir o atrito entre as peças, ainda as protegem contra a corrosão. Entretanto, o desempenho do óleo lubrificante ...
Análisis de cocaína en diferentes muestras por cromatografía de gases con detector de ionización de llama (CG-FID)
(Universidad Nacional de Colombia - Sede Bogotá - Facultad de Ciencias - Departamento de Química, 2015-01-01)
En este estudio se realizó la validación de los métodos establecidos por la UNODC para la cuantificación y extracción de benzometilecgonina (cocaína) presente en las hojas de Erythhroxylum coca, en té de coca y en clorhidrato ...
Strategies of bioremediation for the degradation of petroleum hydrocarbons in the presence of metals in mangrove simulated
(Brasil, 2019-03-21)
Contamination by oil spills in coastal ecosystems, especially in mangrove zones, has been common in countries with oil industry. The aim of this study was, therefore, to evaluate the efficiency of application of the two ...
Tropospheric degradation of 2,2,2 trifluoroethyl butyrate: Kinetic study of their reactions with OH radicals and Cl atoms at 298 K
(Elsevier Science, 2013-06)
Rate coefficients of the reactions of OH radicals and Cl atoms with 2,2,2 trifluoroethyl butyrate have been determined at 298 K and atmospheric pressure. The decay of the organics was followed using a gas chromatograph ...
Polycyclic aromatic hydrocarbons and petroleum biomarkers in Sao Sebastiao Channel, Brazil: Assessment of petroleum contamination
(ELSEVIER SCI LTD, 2010)
Polycyclic aromatic hydrocarbons (PAHs) and non-aromatic hydrocarbons (NAHs), including n-alkanes, isoprenoids and petroleum biomarkers (terpanes, hopanes, steranes and diasteranes), were quantified by gas chromatography ...
The Fate of an oil Spill In São Sebastião Channal: A case study
(São Sebastião, 2013)
An oil pipeline ruptured in May 1994 and 2 700 tons of crude oil leaked into the São Sebastião Channel, affecting several neighboring areas. A program for the monitoring of hydrocarbons in sediments, using the gas ...