Search Results - "Efraim Lázaro Reis"

Use of polyurethane foams for the removal of the Direct Red 80 and Reactive Blue 21 dyes in aqueous medium by de Jesus da Silveira Neta, Julieta, Costa Moreira, Guilherme, da Silva, Carlos Juliano, Reis, César, Reis, Efraim Lázaro

“…The use of polyurethane foam (PUF) as an alternative adsorbent was investigated with the objective of removing Direct Red 80 (DR80) and Reactive Blue 21 (RB21)…”
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Potentiometric Determination of Paracetamol in Pharmaceutical Formulations by the Analyte Pulse Perturbation Technique using Belousov–Zhabotinskii Oscillating chemical Reaction by Luiz Fernando Oliveira Maia, Reis, Efraim Lázaro, Reis, César, Gonçalves Reis, Clausius Duque, de Carvalho Damasceno, Odilaine Inácio, Teixeira dos Reis, Luís Gustavo

“…The present work proposes the development of an analytical procedure for paracetamol determination in pharmaceutical formulations using a system of continuous…”
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Bioindicator potential of Ricinus communis to simulated rainfall containing potassium fluoride by Rodrigues, Douglas Almeida, Sales, Juliana de Fátima, Vasconcelos Filho, Sebastião Carvalho, Rodrigues, Arthur Almeida, Guimarães Teles, Eduardo Matheus, Costa, Alan Carlos, Reis, Efraim Lázaro, Andrade de Carvalho Silva, Thais, Müller, Caroline

“…Fluoride pollution is a global problem because of its high phytotoxicity. Fluoride is released in air, water and soil through industrial processes, where it…”
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ASSESSMENT OF BIOAVAILABILITY OF HEAVY METALS AFTER VERMICOMPOSTING IN THE PRESENCE OF ELECTRONIC WASTE by Damasceno, Odilaine Inácio de Carvalho, Reis, César, Reis, Efraim Lázaro, Bellato, Carlos Roberto, Fidêncio, Paulo Henrique

“…ABSTRACT Heavy metals contained in electronic waste, if discarded improperly, can become bioavailable after vermicomposting, posing a risk to the environment…”
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Properties of black soil humic acids from high altitude rocky complexes in Brazil by de Melo Benites, Vinicius, de Sá Mendonça, Eduardo, Schaefer, Carlos Ernesto G.R., Henrique Novotny, Etelvino, Lázaro Reis, Efraim, Carlos Ker, João

“…Forty two samples of black soils were collected from superficial horizons of the High Altitude Rocky Complex (HARC) that is situated on top of the most…”
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Fractal dimension of humic acids as influenced by complex formation by Mendonca, E. de S, Silva, A.C. da, Fontes, M.P.F, Reis, E.L

“…Among the tools available to explain the conformation of humic acids (HA), the fractal dimension (D) seems to be one of the most adequate. The aim of this…”
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Utilização de mapas auto-organizáveis para verificação da distribuição de metais na atmosfera de Ipatinga, Minas Gerais, através de biomonitoramento com Sphagnum capillifolium by Rocha de Souza Drumond, Adriana, Lázaro Reis, Efraim, Vasconcelos Rabelo Veado, Maria Adelaide, Quintão Moreira, José Márcio

“…O presente trabalho refere-se ao biomonitoramento ativo moss bagda qualidade do ar de Ipatinga –MG, utilizando Sphagnum capillifolium, determinando-se os…”
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Chemometric Optimization of the Methodology for Determination of Molybdenum in Soils and Plants by Square Wave Adsorptive Stripping Voltammetry by de Carvalho, José Ricardo, Reis, Efraim Lázaro, Reis, César, Damasceno, Odilaine, Neves, Antônio Augusto, Matias, Alexsandro Antônio

“…The method is based on the adsorptive accumulation of complex molybdenum(VI) with 8-hydroxyquinoline, using voltammetric square wave cathodic stripping…”
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Synthesis of polymetallic nanoparticles from printed circuit board waste and application in textile dye remediation by Nascimento, Mayra Aparecida, Castro Cruz, Jean, dos Reis, Marina Ferreira, de Carvalho Damasceno, Odilaine Inácio, Lázaro Reis, Efraim, Reis, César, de Oliveira, André Fernando, Pereira Lopes, Renata

“…[Display omitted] •Polymetallic nanoparticles were synthesized from printed circuit boards waste.•Polymetallic nanoparticles have a high surface area of about…”
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Comparative Study of the Physical and Chemical Characteristics of Coffee and Sensorial Analysis by Principal Components by de Oliveira, Ana Paula Lelis Rodrigues, Corrêa, Paulo Cesar, Reis, Efraim Lázaro, de Oliveira, Gabriel Henrique Horta

“…The objective of this work is to compare properties of coffee under different post-harvest processing with its sensorial characteristics by principal component…”
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Programa de ajuste multiparamétrico de curvas de titulação potenciométricas de ácidos húmicos by Reis, Clausius Duque Gonçalves(Unicamp), Fonseca, Rita A. Dutra(UFV Departamento de Química Programa de Pós-Graduação em Agroquímica), Reis, Efraim Lázaro(UFV Departamento de Química), Reis, César(UFV Departamento de Química), Brighenti, Carla Regina Guimarães(Universidade Federal de São João Del Rei Departamento de Engenharia de Biossistemas), Matias, Alexsandro Antônio

“…Tendo em vista a dificuldade de determinação dos pontos de inflexão na curva de titulação potenciométrica de ácidos húmicos, por metodologias tradicionais, foi…”
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CARACTERÍSTICAS FÍSICO-QUÍMICAS DE ÁCIDOS HÚMICOS EM DIFERENTES ETAPAS DA VERMICOMPOSTAGEM by Carla Regina Guimarães Brighenti, Efraim Lázaro Reis, César Reis

“…Samples of materials, collected at different stages of vermicompostaging, were submitted to extraction procedures of humic acids. Titration, termogravimetry…”
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Determination of ammoniacal nitrogen in samples of food, soil, fertilizers and water based on the reaction with formaldehyde by Santos, Juracir Silva, Reis, César, Reis, Efraim Lázaro, Jesus, Raildo Mota de, Reis, Luís Gustavo Teixeira dos, Matias, Alexsandro Antônio

“…Ammonium ion of digested samples of food, soil, fertilizer and water was determined based on the reaction of the ammonium ion with formaldehyde, and then…”
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RESPONSE SURFACE METHODOLOGY AND DESIRABILITY FUNCTION AS STATISTICAL TOOLS IN THE OPTIMIZATION OF ELECTROCOAGULATION PROCESS IN SURFACE WATER by Reis, Efraim Lázaro, Combatt, Maria Paulina Mendonza, Sanjuan, Karina Esther Vasquez, Neves, Antônio Augusto, Mendonça, Regina Célia Santos

“…The electrocoagulation for water clarification for purification have been studied as alternative to the processes of the water treatment. This study aimed to…”
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Tolerance of Hancornia speciosa Gomes (Apocynaceae) to potassium fluoride: physiological and anatomical traits by de Carvalho Silva, Thaís Andrade, Vasconcelos-Filho, Sebastião Carvalho, Rodrigues, Arthur Almeida, Rodrigues, Douglas Almeida, de Freitas Moura, Luciana Minervina, Gonçalves, Izadora Andrade, Costa, Alan Carlos, Reis, Efraim Lázaro, Carlos, Leandro, Müller, Caroline

“…Fluoride (F) is considered one of the most phytotoxic pollutants, even when present in low concentrations. When dispersed in the air, F can be transported to…”
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Avaliação quimiométrica da distribuição de metais pesados em composto de lixo urbano domiciliar by Egreja Filho, Fernando Barboza, Reis, Efraim Lázaro, Jordão, Cláudio Pereira, Pereira Neto, João Tinoco

“…The main obstacle to the use of compost from urban waste in agriculture is the presence of heavy metals. Once in the soil, their effect is accumulative and…”
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Uma proposta de experimento em química analítica instrumental: Determinação espectrofotométrica da constante de ionização do vermelho de alizarina em meios micelares by Mayrink, Maria Isabel Cristina Batista, Sperandio, Gabriel Henrique, Reis, Efraim Lázaro

“…Foram utilizados dois métodos para a determinação da constante de ionização condicional do indicador vermelho de alizarina S em diferentes soluções micelares a…”
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Determinação voltamétrica de Cu(II), Pb(II), Cd(II) e Zn(II) em amostra ambiental certificada e avaliação multivariada de mistura de Pb(II), Tl(I) e Cd(II) com ondas sobrepostas by Reis, Efraim Lázaro, Mayrink, Maria Isabel Cristina Batista, Bellato, Carlos Roberto, Reis, César

“…Utilizando-se a técnica de voltametria de redissolução anódica com pulso diferencial, foram determinados em uma primeira etapa os íons metálicos Cd(II),…”
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UTILIZAÇÃO DE MAPAS AUTO-ORGANIZÁVEIS PARA VERIFICAÇÃO DA DISTRIBUIÇÃO DE METAIS NA ATMOSFERA DE IPATINGA, MINAS GERAIS, ATRAVÉS DE BIOMONITORAMENTO COM Sphagnum capillifolium by Adriana Rocha de Souza Drumond, Efraim Lázaro Reis, Maria Adelaide Vasconcelos Rabelo Veado, José Márcio Quintão Moreira

“…This paper refers to the active biomonitoring moss bag of air quality of Ipatinga - MG, using Sphagnum capillifolium, determining the metals Al, Ca, Cd, Cr,…”
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Remoção de corantes de solução aquosa e de efluentes de indústrias têxteis por meio de adsorção em cabelo humano by Damasceno, Odilaine Inácio de Carvalho, Reis, César, Reis, Efraim Lázaro, Matias, Alexsandro Antônio

“…Foi avaliada a eficiência da remoção dos corantes Direct Red 80 e Reactive Blue 21 em solução aquosa e o tratamento de um efluente têxtil coletado na Companhia…”
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