Samples Oily
Mostrando 1-12 de 12 artigos, teses e dissertações.
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1. Um método de ensaio para determinação da concentração de óleo em amostras de águas contaminadas com óleos e graxas
RESUMO A concentração de óleos e graxas em amostras de águas contaminadas com resíduos oleosos pode ser determinada pelos procedimentos estabelecidos no Standard Methods for the Examination of Water and Wastewater. No entanto, sua aplicação nem sempre resulta em valores adequados ou níveis de precisão satisfatórios para atendimento de padrões norm
Eng. Sanit. Ambient.. Publicado em: 05/08/2019
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2. Total Mercury Determination in Petroleum Green Coke and Oily Sludge Samples by Cold Vapor Atomic Fluorescence Spectrometry
A fast, simple and reliable method for Hg determination in green coke and oily sludge samples by atomic fluorescence spectrometry is described. Microwave digestion and extraction procedures were evaluated for highly complex samples of coke and oily sludge. The concentrations of SnCl2 and HCl to promote Hg vapor, were optimized, as well as the concentration o
J. Braz. Chem. Soc.. Publicado em: 2015-10
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3. Influence of lubricant oil residual fraction on recycled high density polyethylene properties and plastic packaging reverse logistics proposal
Abstract To recycle post-consumer HDPE contaminated with waste lubricating oils, companies include prior washing and drying in the process. This consumes large amounts of water and energy, generates significant effluent requiring treatment. This study assesses lubricating oil influence on HDPE properties to evaluate the feasibility of its direct mechanical r
Polímeros. Publicado em: 2015-10
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4. Antiperoxidative properties of oil mixes of high ratio Omega-9:Omega-6 and low ratio Omega-6:Omega-3 after molar extraction in rats
PURPOSE: To evaluate the antioxidant and antiperoxidative effects of oil mixes of high ratio Omega-9:Omega-6 and low ratio Omega-6:Omega-3 in the third day after tooth extraction in rats. METHODS: Thirty-two male Wistar rats (270-310g) were randomly distributed in two groups: Control (n=24) and Test (n=8). Control group was divided into three subgroups (n=8
Acta Cir. Bras.. Publicado em: 2014-06
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5. ESTUDO DAS PROPRIEDADES ELÉTRICAS DE COMPÓSITOS CARBONO-ARGILA OBTIDOS A PARTIR DA BORRA DE PETRÓLEO PELO MÉTODO DE QUATRO PONTAS / STUDY OF ELECTRICAL PROPERTIES OF CARBON-CLAY COMPOSITES OBTAINED FROM THE METHOD OIL SLUDGE FOUR TIPS
The petroleum industry produces significant amounts of residues in several of its processes, from the perforation of wells, production, storage, transport and refining, to the distribution of its derivatives. The wastewater generated in the oil extraction step is known as produced water and, when stored in flotation tanks, if generates a residue called oily
Publicado em: 2010
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6. EXTRAÇÃO E CARACTERIZAÇÃO DE ÓLEO DO PEQUI (Caryocar brasiliensis Camb.) PARA O USO SUSTENTÁVEL EM FORMULAÇÕES COSMÉTICAS ÓLEO/ÁGUA (O/A)
Pequi (Caryocar brasiliense Camb.) is a fruit typical of the Brazilian Cerrado. It is used principally in regional cuisine and in different ways. This work had as objective to characterize the oil extracted of pulp and nut in order to use in cosmetic formulations O/W gel emulsions, in a sustainable manner. Samples were obtained in Montes Claros/MG. Pequi oil
Publicado em: 2008
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7. Use of the basal palm of peach palm in alternative to the foliaceous palm, to increase the use of the palm tree Bactris gasipaes / Utilização do palmito basal de pupunha em alternativa ao palmito foliar, visando aumentar o aproveitamento da palmeira Bactris gasipaes
The palm can be obtained from several palms trees. Besides of high rate of exploration of Euterpe palms trees and his low regeneration power, there is a lack of product in the consumer market. More precocious palms trees and which produce good palm heart have been investigated, one of them is the peach palm (Bactris gasipaes), native of Amazon region that pr
Publicado em: 2008
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8. Desenvolvimento, caracterizaÃÃo e estudo de permeaÃÃo cutÃnea de diclofenaco de dietilamÃnio em sistemas tÃpicos nanoemulsionados
The nanoemulsions (NE) are transparent, isotropic and thermodynamically stable systems, formed spontaneously under a specific set of experimental conditions from mixtures of water and oil phases stabilized by a surfactant or a mixture of surfactant and cosufactant. Because of their properties, especially the ability to carry lipophilic and hydrophilic drugs
Publicado em: 2008
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9. DESENVOLVIMENTO DE MÉTODOS ANALÍTICOS PARA DETERMINAÇÃO DE ELEMENTOS-TRAÇO EM AMOSTRAS OLEOSAS E PASTOSAS POR ICP OES E ICP- MS / DEVELOPMENT OF ANALYTICAL METHODS FOR TRACE ELEMENTS DETERMINATIONS IN OILY AND VISCOUS SAMPLES BY ICP OES E ICP-MS
Métodos de análise para determinação de elementos-traço em amostras oleosas e pastosas são necessários, por exemplo, no caso do petróleo e em suas frações mais pesadas, para os quais os elementos-traço indicam características do tipo do petróleo, correlacionando-o com a localização geográfica da jazida. Além disso, a quantificação destes e
Publicado em: 2007
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10. Monitoramento de aflatoxinas, fungos toxigênicos e níveis de contaminação em matérias primas e alimentos balanceados. Aflatoxicose natural em cães no estado do Rio de Janeiro / Aflatoxins survey, toxicogenic fungi and contamination level in raw material of balanced feedstuff. Natural aflatoxicoses in dogs of Rio de Janeiro State
The commercial feed constitutes an important element in the pet industry in Brazil. Its composition includes cereal mixtures produced in farms such as sorghum, maize and some oily seeds. All feed destined to pets are supplemented with fats, vitamins, minerals, antirust and flours of diverse origins incorporated in some cases as pellets. When conditions of nu
Publicado em: 2007
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11. Evaluation of Genetic Diversity among Pseudomonas citronellolis Strains Isolated from Oily Sludge-Contaminated Sites
The diversity among a set of bacterial strains that have the capacity to degrade total petroleum hydrocarbons (TPH) in soil contaminated with oily sludge (hazardous hydrocarbon waste from oil refineries) was determined. TPH is composed of alkane, aromatics, nitrogen-, sulfur-, and oxygen-containing compound, and asphaltene fractions of crude oil. The 150 bac
American Society for Microbiology.
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12. Characterization and Stability of Emulsion Gels Based on Acrylamide/Sodium Acryloyldimethyl Taurate Copolymer
Sepineo P 600, a concentrated dispersion of acrylamide/sodium acryloyldimethyl taurate copolymer in isohexadecane, has self-gelling and thickening properties and the ability to emulsify oily phases, which make it easy to use in the formulation of gels and o/w emulsion gels. In this paper, gels were prepared using a Sepineo P 600 concentration between the 0.5
Springer US.