Nebulization
Mostrando 1-12 de 45 artigos, teses e dissertações.
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1. Alternative Approaches Applied to Inductively Coupled Plasma Techniques: Multi-Flow and Two-Flow Calibration
Multi-flow calibration (MFC) is based on monitoring the analytical signal from a single calibration standard solution at several different nebulization gas flow rates (Q), which normalizes plasma conditions and minimizes matrix effects. In the present study, MFC was evaluated, for the first time, applied to inductively coupled plasma optical emission spectro
J. Braz. Chem. Soc.. Publicado em: 2021-04
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2. YIELD AND QUALITY OF STRAWBERRY FRUITS FERTILIZED WITH BOVINE BIOFERTILIZER
RESUMO Objetivou-se avaliar o efeito de diferentes doses de biofertilizante bovino na produtividade e na pós-colheita da cultura do morango em diferentes ambientes de cultivo. O experimento foi desenvolvido, em dois ciclos de produção, em Fortaleza, Ceará. O delineamento experimental foi em blocos ao acaso, arranjados em parcelas subdivididas, onde as pa
Rev. Caatinga. Publicado em: 09/05/2019
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3. Effect of Short-Term Inhalation of The Herbicide 2,4D on Cardiac Remodeling: Morphological Aspects
Abstract Background: Brazil is the worldwide leader in the long-term use of pesticides and herbicides. This compromises the health of handlers by causing harmful neurological, respiratory, and cardiovascular changes. The herbicide 2.4D has been shown to cause cardiac overload with subsequent pathological remodeling. Objective: To analyze the cardiac morpho
Int. J. Cardiovasc. Sci.. Publicado em: 07/03/2019
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4. Legionelosis ocupacional en mayores de 18 años: revisión sistemática
Abstract The scope of this paper is to review the available scientific literature about the effects on health of occupational exposure to Legionella spp. A systematic review of the scientific literature retrieved from the MEDLINE (via PubMed), ISI-Web of Science (Institute for Scientific Information), Cochrane Library, LILCAS and SCOPUS databases through Feb
Ciênc. saúde coletiva. Publicado em: 2019-03
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5. Determinação de metais em peixes e camarão-rosa (Farfantepenaeus paulensis) do estuário da Lagoa dos Patos (Pelotas-RS, Brasil) por MIP OES
Resumo No presente trabalho, a técnica de espectrometria de emissão óptica com plasma induzido por micro-ondas foi empregada para determinar as concentrações de Al, Cd, Cu, Hg, Mg, Sb e Zn em amostras de peixes (bagre, tainha, traíra, pintado e corvina) e de Al, Ba, Ca, Cd, Cr, Cu, Fe, Mg, Mn, Ni, Pb, Sb, Ti e Zn em amostras de camarão-rosa (Farfante
Braz. J. Food Technol.. Publicado em: 25/02/2019
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6. Development and evaluation of an inhalation chamber for in vivo tests
ABSTRACT The bioavailability, toxicity, and therapeutic efficacy of a drug is directly related to its administration route. The pulmonary route can be accessed by inhalation after fumigation, vaporization or nebulization. Thus, pharmacological and toxicological evaluation accessed by an apparatus specifically designed and validated for this type of administr
An. Acad. Bras. Ciênc.. Publicado em: 17/08/2017
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7. ICP OES Determination of Contaminant Elements Leached from Food Packaging Films
ABSTRACT Determination of potential contaminants elements in food packing films arising from contact with acidic aqueous foods was undertaken by inductively coupled plasma optical emission spectrometry (ICP OES) in accordance with DIN EN 1186-1. Test sections from plastic films were totally immersed in 3% w/v CH3COOH used as the food simulant. Testing was c
Braz. arch. biol. technol.. Publicado em: 17/08/2017
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8. Performance evaluation of nebulizers based on aerodynamic droplet diameter characterization using the Direct Laminar Incidence (DLI)
Abstract Introduction Optical microscope images can be useful to evaluate nebulizers considering the size of droplets produced by these devices. From this perspective, the proposed method was compared to the classic concept of Mass Median Aerodynamic Diameter (MMAD) for the ideal droplet size between 0.5-5.5 µm. Methods We tested a sample of five home neb
Res. Biomed. Eng.. Publicado em: 29/06/2017
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9. TREATMENT OF WASTE FROM ATOMIC EMISSION SPECTROMETRIC TECHNIQUES AND REUSE IN UNDERGRADUATE LAB CLASSES FOR QUALITATIVE ANALYSIS
Flame atomic absorption spectrometry (FAAS) and inductively coupled plasma optical emission spectrometry (ICP OES) are widely used in academic institutions and laboratories for quality control to analyze inorganic elements in samples. However, these techniques have been observed to underperform in sample nebulization processes. Most of the samples processed
Quím. Nova. Publicado em: 2015-11
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10. ANÁLISE EXPLORATÓRIA DAS CONCENTRAÇÕES DOS METAIS NA, CA, MG, SR E FE EM EXTRATO AQUOSO DE PETRÓLEO, DETERMINADOS POR ICP OES, APÓS OTIMIZAÇÃO EMPREGANDO PLANEJAMENTO DE EXPERIMENTOS
AbstractThe purpose of this study was to evaluate the best operating conditions of ICP OES for the determination of Na, Ca, Mg, Sr and Fe in aqueous extract of crude oil obtained after hot extraction with organic solvents (ASTM D 6470-99 modified). Thus, the full factorial design and central composite design were used to optimize the best conditions for the
Quím. Nova. Publicado em: 2015-08
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11. Avaliação da combinação da nebulização discreta e processos de microextração aplicados à determinação de molibdênio por espectrometria de absorção atômica com chama (FAAS)
Simple and sensitive procedures for the extraction/preconcentration of molybdenum based on vortex-assisted solidified floating organic drop microextraction (VA-SFODME) and cloud point combined with flame absorption atomic spectrometry (FAAS) and discrete nebulization were developed. The influence of the discrete nebulization on the sensitivity of the molybde
Quím. Nova. Publicado em: 2014-04
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12. DEVELOPMENT OF METHOD FOR DETERMINATION OF AS, SB AND SE IN BIODIESEL AND PETROLEUM BY INDUCTIVELY COUPLED PLASMA OPTICAL EMISSION SPECTROMETRY WITH SAMPLE INTRODUCTION BY HYDRIDE GENERATION (HG ICP / DESENVOLVIMENTO DE MÉTODO PARA DETERMINAÇÃO DE AS, SB E SE EM BIODIESEL E PETRÓLEO POR ICP OES COM INTRODUÇÃO DE AMOSTRA POR GERAÇÃO DE HIDRETOS
With the increasing world population and the consequent increasing in industrial activities and fuel consumption, chemical pollution has been a major problem of the XXI century. Alternatives that can minimize such problems are targets of researches, such as the use of biodiesel, a renewable and less polluting fuel. Elements usually found in low concentration
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/03/2011