Environmental Laboratories
Mostrando 1-12 de 69 artigos, teses e dissertações.
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1. Improving reproducibility and external validity. The role of standardization and data reporting of laboratory rat husbandry and housing
Abstract Purpose: To identify the most relevant flaws in standardization in husbandry practices and lack of transparency to report them. This review proposes some measures in order to improve transparency, reproducibility and eventually external validity in experimental surgery experiments with rat model. Methods: We performed a search of scientific articl
Acta Cir. Bras.. Publicado em: 2017-03
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2. Oceanografia e Química: unindo conhecimentos em prol dos oceanos e da sociedade
The marine environment is certainly one of the most complex systems to study, not only because of the challenges posed by the nature of the waters, but especially due to the interactions of physical, chemical and biological processes that control the cycles of the elements. Together with analytical chemists, oceanographers have been making a great effort in
Quím. Nova. Publicado em: 2013
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3. Rapid tests for the detection of the Mycobacterium abscessus subsp. bolletii strain responsible for an epidemic of surgical-site infections in Brazil
A single strain of Mycobacterium abscessus subsp. bolletii, characterised by a particular rpoB sequevar and two highly related pulsed field gel electrophoresis patterns has been responsible for a nationwide outbreak of surgical infections in Brazil since 2004. In this study, we developed molecular tests based on polymerase chain reaction restriction-enzyme a
Mem. Inst. Oswaldo Cruz. Publicado em: 2012-12
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4. Evaluation techniques coupled to mass spectrometry (ICP-MS) aimed at the fractionation and chemical speciation of mercury in blood and plasma / Avaliação de técnicas acopladas à espectrometria de massas com plasma (ICP-MS) visando o fracionamento e a especiação química de mercúrio em sangue e plasma
Mercury (Hg) is one of the most toxic environmental pollutants. It exists primarily in three forms: elemental mercury (Hg0), or metallic mercury, inorganic mercury (Hg-i), particularly mercuric chloride and organic mercury (Hg-o), mainly represented by methylmercury (MeHg) and ethylmercury (EtHg), and the organic forms of mercury are more toxic than the inor
Publicado em: 2010
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5. Arquitetura como interface para a informação: sobre a espacialização das tecnologias da informação rumo a práticas colaborativas
This study examines an intersection between the spatialization of information and CSCW - Computer Supported Collaborative Work. More specifically it is argued the possibility of influence of the spatial distribution of ICT (information and communication technologies) on the interactions between members of two remotely connected laboratories. Spatialization (
Publicado em: 2010
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6. Emprego da técnica de emissão por fluorescência de ultravioleta no monitoramento de inibidores de corrosão em água produzida / Use of ultraviolet fluorescence emission in the monitoring of corrosion inhibitor in produced water
In order to increase the volume of oil extraction, solve and prevent problems in oil production, several chemical products are used. Corrosion inhibitors are the main chemical products used in the whole oil production chain, whose objective is to protect the system from deterioration caused by corrosion. The quaternary ammonium salts are the kind of inhibito
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/07/2009
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7. Desempenho analítico de laboratórios prestadores de serviço na determinação de metais em águas
Analytical laboratories are expected to produce reliable results. Decision makers are guided in their actions (financial, legal and environmental) using analytical data provided by numerous laboratories. This work aimed to evaluate the analytical performance of Brazilian laboratories on producing trustworthy results. Nineteen laboratories, accredited and non
Química Nova. Publicado em: 2009
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8. Laboratorial quality index (IQL): a purpose for environmental laboratories / Índice de qualidade laboratorial (IQL): uma proposta para laboratórios de controle ambiental
A abordagem sobre a elaboração de índices representativos da qualidade constitui recurso cada vez mais utilizado para o monitoramento ou comparação de uma ou mais situações, permitindo expressar de forma simplificada as condições avaliadas. Na área de meio ambiente, os resultados fornecidos pelos laboratórios de controle ambiental assumem um impor
Publicado em: 2009
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9. Determinação de resíduos dos pesticidas pirimetanil, pirimicarbe e buprofezina em águas ambientais por SPME e GCMS
The aim of the work was to develop method for determining pyrimethanil, pirimicarb and buprofezin residues in environmental water using solid-phase microextraction and gas chromatography-mass spectrometry. To perform the SPME, a 100 μm polydimethylsiloxane (PDMS) fiber was used for the extraction of the pesticides from water samples. Using univariate op
Publicado em: 2009
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10. UMA PROPOSTA DE IMPLANTAÇÃO DE GESTÃO AMBIENTAL NO LABORATÓRIO DE ANÁLISES DE SOLOS DA UFSM / A ENVIRONMENTAL MANAGEMENT IMPLANTATION PROPOSAL IN THE LABORATORY OF ANALYSIS OF SOILS OF UFSM
The concern with the environmental performance comes demanding a different posture for the organizations from those that came more and more being adopted in the last decades. The governments pressures, fiscal control organs and the population in general display it selves more accentuated than never. The Higher Education Institutions (IES), its schools, cente
Publicado em: 2008
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11. A pirólise como técnica analítica
In this paper historical aspects of analytical pyrolysis, the equipment used, the fundamentals and the mechanisms of pyrolysis of different polymeric materials are discussed. The latest work on analytical pyrolysis applied to various types of synthetic and natural samples is reviewed. Current applications of this technique that are discussed include identifi
Química Nova. Publicado em: 2008
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12. De resíduo a insumo: a construção do caminho para uma química mais limpa através de um projeto de ensino
The discussion among teachers, students, and technicians about the destination of residues from chemistry laboratories led to a research project whose results were incorporated into a course in its daily practices. The treatment of the residues from argentimetric practices allowed us to establish cognitive relations of technological basis and of those relate
Química Nova. Publicado em: 2008