Copper Nickel Chromium
Mostrando 1-12 de 26 artigos, teses e dissertações.
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1. Monitoring and health risk assessment of selected trace metals in wheat rice and soil samples
Abstract Wheat and rice constitute important cereal crops and any contamination may pose potential adverse impacts on human health. The study was conducted to determine eight trace metals, i.e. cadmium (Cd), copper (Cu), cobalt (Co), chromium (Cr), zinc (Zn), lead (Pb), nickel(Ni), manganese (Mn), in wheat, rice and soil samples collected from different citi
Food Sci. Technol. Publicado em: 2020-12
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2. Telepsychiatry in Brazil during the COVID-19 pandemic: Did we exchange a walk-on part in a war for a lead role in a cage?
Abstract Wheat and rice constitute important cereal crops and any contamination may pose potential adverse impacts on human health. The study was conducted to determine eight trace metals, i.e. cadmium (Cd), copper (Cu), cobalt (Co), chromium (Cr), zinc (Zn), lead (Pb), nickel(Ni), manganese (Mn), in wheat, rice and soil samples collected from different citi
J. bras. psiquiatr.. Publicado em: 2020-12
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3. Potencial antimicrobiano de diferentes retentores intrarradiculares frente a Enterococcus faecalis: uma avaliação in vitro
Resumo Introdução O tratamento endodôntico tem como objetivo erradicar microrganismos bacterianos e fúngicos do canal radicular, ou pelo menos possibilitar sua redução para níveis compatíveis com a saúde do tecido perirradicular, uma vez que, após o tratamento endodôntico, colônias de microrganismos residuais podem estar presentes nos túbulos d
Rev. odontol. UNESP. Publicado em: 23/09/2019
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4. Minerals multi-element analysis and its relationship with geographical origin of artisanal Mexican goat cheeses
Abstract The objective of this study was to perform a profile of mineral elements and the relationship of those as markers of geographical origin of artisanal goat cheese from the State of Veracruz, Mexico. In fresh and mature goat cheeses the quantified elements were: heavy (aluminum, arsenic, cadmium, lead), major (calcium, potassium, sodium, magnesium), e
Food Sci. Technol. Publicado em: 09/05/2019
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5. Synthesis, Characterization and Antimicrobial Activities of Copper, Nickel, Cobalt, Chromium Complexes Derived from (Z)-4-Fluoro-N-(2,7-dimethylhept-6-enylidene) benzenamine
Melonal is a relatively unexplored ingredient in the field of chemistry with excellent sensory properties. The synthesis and characterization of novel transition 3d metal complexes of copper(II), nickel(II), cobalt(II) and chromium(III) involving the Schiff base of melonal were explored to examine their biological activity. Characterization of the complexes
J. Braz. Chem. Soc.. Publicado em: 2017-05
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6. Mineral element and heavy metal (cadmium, lead and arsenic) levels of bee pollen in Turkey
Abstract In this study, mineral element and heavy metal levels in bee pollen produced in various regions of Turkey (20 samples) and imported bee pollen (4 samples), were determined using an Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES) device. Mineral and heavy metal levels of bee pollens produced in Turkey were determined to be within t
Food Sci. Technol. Publicado em: 09/03/2017
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7. ESTUDO DO EFEITO DE MATRIZ NA DETERMINAÇÃO DE METAIS EM ÓLEOS BÁSICOS RERREFINADOS POR FLUORESCÊNCIA DE RAIOS X POR ENERGIA DISPERSIVA
In this article, the results of the study of the matrix effect in the determination of metals calcium, chromium, iron, nickel, copper, zinc, molybdenum, cadmium, barium and lead in base oil using Energy Dispersive X-Ray Fluorescence (EDX) are presented. Sensitivities obtained for each calibration curve were evaluated where calcium, chromium, copper, cadmi
Quím. Nova. Publicado em: 2015-06
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8. Mechanical and microstructural characterization of Nodular Cast Iron (NCI) with Niobium Additions
Nodular cast irons (NCIs) involve the inoculation and nodulization of 0.03 to 0.06wt% Magnesium, as well as the addition of Molybdenum, Chromium, Nickel, Copper and Vanadium, although the presence of Niobium is not common. The literature reports that Niobium leads to better mechanical properties of the NCIs, and recent results indicate that 0.5wt% Niobium in
Mat. Res.. Publicado em: 2014-10
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9. Impactos ambientais da disposição de resíduos sólidos urbanos no solo e na água superficial em três municípios de Minas Gerais
The study was conducted in the landfill area of Campo Belo, the landfilling of Santo Antonio do Amparo and the dump closed from Elói Mendes, located in southern Minas Gerais, to evaluate the environmental impacts of different types of disposal Municipal Solid Waste under field conditions on the surface water and soil. For the assessment of impacts on surfac
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 05/08/2011
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10. Obtenção e caracterização de ligas de Cu-Ni-Cr de alta condutividade elétrica e alta resistência mecânica
Neste trabalho foram sintetizadas diversas amostras de ligas metálicas ternárias de Cu-Ni-Cr por metalurgia do pó. As ligas receberam diferentes tratamentos térmicos de sinterização e homogeneização e todas foram caracterizadas metalograficamente. Foram realizadas medidas de micro- ureza e de resistência elétrica de amostras de varias composições
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 17/06/2011
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11. Metais pesados e micronutrientes no solo e em folhas de Brachiaria decumbens às margens de rodovias / Heavy metals and micronutrients in soil and in leaves of Brachiaria decumbens on the margins of highways
The generation of various wastes, has become alarming in light of their growing volume and their disposal to form inappropriate, especially in soil. One of the characteristics of such waste is the possibility of being contaminated by heavy metals. The Fuel obtained the refining of oil, widely used in automobiles, are usually enriched with toxic elements. The
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/02/2009
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12. Retenção de metais pesados em solos agricultáveis do Estado de Goiás / Retention of heavy metals in agricultural soils of the State of Goiás
The intensification of the use of land for farming has caused great concern, mainly due to the impacts that these activities are causing the environment, particularly with regard to its contamination by chemicals. The application of chemicals and waste ground and in several, or in plants in order to take agronomically solid waste, improve productivity and in
Publicado em: 2009