Search Results - "DO NASCIMENTO, Ronaldo Ferreira"

Matrix effect evaluation and method validation of organophosphorus pesticide residues in bell peppers (Capsicum annuum L.) by GC-MS determination by Fernandes, Tatiana Sainara Maia, Alcântara, Daniel Barbosa, Barbosa, Pablo Gordiano Alexandre, Paz, Mário Sérgio de Oliveira, Zocolo, Guilherme Julião, Nascimento, Ronaldo Ferreira do

“…The matrix effects in bell pepper samples were studied. The simultaneous determination of six organophosphorus (OPPs) pesticides (chlorpyrifos, dichlorvos,…”
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Evaluation of new chemically modified coconut shell adsorbents with tannic acid for Cu (II) removal from wastewater by de Oliveira Sousa Neto, Vicente, Melo, Diego Quadros, de Oliveira, Talles Cardoso, Nonato, Raimundo, Teixeira, P., Silva, Marcos Antônio Araújo, Nascimento, Ronaldo Ferreira do

“…The adsorption of Cu (II) from aqueous solutions using coconut shell modified powder was investigated in batch experiments. The surface charge of the adsorbent…”
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Effect of dye structure and redox mediators on anaerobic azo and anthraquinone dye reduction by Costa, Mayara Carantino, Mota, Francisco Suetônio B, Santos, André Bezerra Dos, Mendonça, Glaydson Leandro Farias, Nascimento, Ronaldo Ferreira do

“…We investigated the biological decolourisation of dyes with different molecular structures. The kinetic constant values (k1) achieved with azo dye Reactive Red…”
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Electrocoagulation/oxidation/flotation by direct pulsed current applied to the removal of antibiotics from Brazilian WWTP effluents by Oliveira, Juliene Tomé, de Sousa, Mikaelly Cabral, Martins, Igor Alves, de Sena, Luiza Maria Gomes, Nogueira, Tiago Rocha, Vidal, Carla Bastos, Neto, Eliezer Fares Abdala, Romero, Francisco Belmino, Campos, Othon Souto, do Nascimento, Ronaldo Ferreira

“…•Wastewater treatment plant effluents were treated by direct pulse current (DPC) electrocoagulation technique.•DPC technique was 30% efficient in terms of…”
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Barrier Discharge Ionization Detector in Gas Chromatography: A Review on Applications by Lopes, Amanda Fonseca, Fernandes, Tatiana Sainara Maia, do Nascimento, Ronaldo Ferreira

“…The barrier discharge ionization detector (BID) is one of the latest detection technologies used in gas chromatography (GC). 306 papers from 2012 to 2021 with…”
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Electrocoagulation cell for the production of hydrogen without carbon emission and simultaneous treatment of textile wastewater by da Silva, Luiz Thiago Vasconcelos, de Oliveira, André Gadelha, Ribeiro, Jefferson Pereira, Lopes, Amanda Fonseca, da Silva Costa, Rouse, Neto, Eliezer Fares Abdala, Carvalhod, Tecia Vieira, Romero, Francisco Belmino, Santos Sales, João Victor, de Souza, Francisco Thiago Correia, Nascimento, Ronaldo Ferreira do

“…This study aimed to verify the efficiency of an electrocoagulation reactor to generate low carbon hydrogen and treat textile effluent simultaneously. The…”
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Chemical modifications of lignocellulosic materials and their application for removal of cations and anions from aqueous solutions by de Quadros Melo, Diego, de Oliveira Sousa Neto, Vicente, de Freitas Barros, Francisco Claudio, Raulino, Giselle Santiago Cabral, Vidal, Carla Bastos, do Nascimento, Ronaldo Ferreira

“…ABSTRACT This review discussed the last 10 years progress in the use of lignocellulosic materials chemically modified as low‐cost biosorbents. Thus, the…”
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Impact of different kernel grades on volatile compounds profile, fatty acids and oxidative quality of cashew nut oil by Leal, Amanda Rodrigues, Dionísio, Ana Paula, Abreu, Fernando Antonio Pinto de, Oliveira, Gilleno Ferreira de, Araújo, Idila Maria da Silva, Magalhães, Hilton César Rodrigues, Leite, Andressa Barbosa, Silva, Emilly Kaiane Maia da, Nascimento, Ronaldo Ferreira do, Nascimento, Hélio Oliveira do, Sousa, Paulo Henrique Machado de

“…[Display omitted] •Kernel grades impact the oxidation of cashew nut oil.•The broken kernel had the similar or higher quality to the whole kernel cashew nut…”
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New HS-SPME-GC-BID method for the determination of volatile constituents in distilled beverages by Oliveira do Nascimento, Hélio, Zillene Franklin da Silva, Maria, Beserra Alexandre, Jéssica, Bastos Vidal, Carla, Vieira Carvalho, Tecia, Ferreira do Nascimento, Ronaldo

“…[Display omitted] •Determination of alcohols and esters whiskies by HS-SPME/ GC-BID.•A chromatographic method optimized for volatile in distilled…”
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Potential risk of BPA and phthalates in commercial water bottles: a minireview by da Silva Costa, Rouse, Sainara Maia Fernandes, Tatiana, de Sousa Almeida, Edmilson, Tomé Oliveira, Juliene, Carvalho Guedes, Jhonyson Arruda, Julião Zocolo, Guilherme, Wagner de Sousa, Francisco, do Nascimento, Ronaldo Ferreira

“…The global water bottling market grows annually. Today, to ensure consumer safety, it is important to verify the possible migration of compounds from bottles…”
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Chemometric tools associated to chromatographic data to assess the quality and authenticity whiskeys by Oliveira do Nascimento, Hélio, Zillene Franklin da Silva, Maria, Beserra Alexandre, Jéssica, Ítalo da Silva Oliveira, Túlio, Clecius Alves de Lima, Ari, Ferreira do Nascimento, Ronaldo

“…[Display omitted] •Use of chromatographic data involving alcohols and esters content by HS-SPME-GC-BID method and aldehydes by 2,4-DNPH-HPLC-DAD method from…”
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Removal of natural organic matter from aqueous solutions using electrocoagulation pulsed current: optimization using response surface methodology by de Oliveira, André Gadelha, Ribeiro, Jefferson Pereira, Neto, Eliezer Fares Abdala, de Lima, Ari Clecius Alves, Amazonas, Álvaro Amanajás, da Silva, Luiz Thiago Vasconcelos, do Nascimento, Ronaldo Ferreira

“…The use of the pulsed current can be an alternative to decrease the electrode polarization, as well as achieving lower energy consumption. This study…”
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Comparative Study Between VWD and FLD Detector in HPLC System for Azoxystrobin Quantification in Water by de Oliveira Gomes, Hiago, da Silva Bento, Ellen Cristine Lopes, dos Santos, Clenel Robson Feitosa, da Silva Cardoso, Roseni, de Souza, Carliane de Oliveira, de Oliveira, Ligia Claudia Castro, da Costa, José Galberto Martins, do Nascimento, Ronaldo Ferreira, Teixeira, Raimundo Nonato Pereira

“…In this study, the efficiency of two detectors—variable wavelength detector (VWD) and fluorescence detector (FLD)—in a liquid chromatograph to quantify…”
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Role of surface chemistry and morphology in the reactive adsorption of metal ions on acid modified dry bean pods (Phaseolus vulgaris L.) organic polymers by Raulino, Giselle Santiago Cabral, Silva, Leila Soares da, Vidal, Carla Bastos, de Sousa Almeida, Edmilson, de Quadros Melo, Diego, Nascimento, Ronaldo Ferreira do

“…ABSTRACT The present study aimed at verifying the acid surface modification of dry bean pods subjected to alkaline pretreatment using tannic acid, poly(acrylic…”
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Method Validation Using Normal and Weighted Linear Regression Models for Quantification of Pesticides in Mango (Mangifera indica L.) Samples by Martins, Fátima Itana Chaves Custódio, Barbosa, Pablo Gordiano Alexandre, Zocolo, Guilherme Julião, do Nascimento, Ronaldo Ferreira

“…A fast and efficient method was developed and validated for the determination of pesticides in mangos, which uses the QuEChERS citrate and gas…”
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Biosorption of metal ions using a low cost modified adsorbent (Mauritia flexuosa): experimental design and mathematical modeling by Melo, Diego de Quadros, Vidal, Carla Bastos, Medeiros, Thiago Coutinho, Raulino, Giselle Santiago Cabral, Dervanoski, Adriana, Pinheiro, Márcio do Carmo, Nascimento, Ronaldo Ferreira do

“…Buriti fibers were subjected to an alkaline pre-treatment and tested as an adsorbent to investigate the adsorption of copper, cadmium, lead and nickel in mono-…”
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Removal of Toxic Metal Ions from Aqueous Solutions in Integrated Clay Adsorption and Electroflotation by Teixeira, Raimundo Nonato Pereira, Neto, Vicente Oliveira Sousa, Oliveira, Juliene Tomé, Amorim, Lucas Fontenele, Neto, Eliezer Fares Abdala, de Quadros Melo, Diego, Coutinho, Henrique Douglas Melo, Kim, Bonglee, Menezes, Jorge Marcell Coelho, do Nascimento, Ronaldo Ferreira

“…Most galvanic process industries treat their effluents by chemical precipitation methods. Such a method produces an amount of galvanic sludge that is often…”
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Evaluation of the toxicity of textile effluent treated by electrocoagulation by Martins, Jéssica Elen Costa Alexandre, Abdala Neto, Eliezer Fares, Ribeiro, Jefferson Pereira, Lima, Ari Clecius Alves de, de Souza, Francisco Wagner, de Oliveira, André Gadelha, Vidal, Carla Bastos, do Nascimento, Ronaldo Ferreira

“…Textile effluents are complex, making it difficult to choose an effective treatment. The textile effluent toxicity in Lactuca sativa after pulsed current (PC)…”
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A study of the factors that contribute to the corrosion process in produced water samples: a multivariate analysis approach by de Sousa Braz, Ana Kátia, Correia, Leandro Marques, dos Santos, José Cleiton Sousa, Romero, Francisco Belmino, Vidal, Carla Bastos, de Lima, Ari Clecius Alves, do Nascimento, Ronaldo Ferreira

“…Due to the exploration and production of oil in new oil fields, significant volumes of produced water are being extracted. In maritime platforms, seawater is…”
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Statistical Analysis for Quality Adjustment of the Analytical Curve for Determination of Pesticide Multiresidue in Pineapple Samples by Barbosa, Pablo Gordiano Alexandre, Martins, Fátima Itana Chaves Custódio, Lima, Lucélia Katia, Milhome, Maria Aparecida Liberato, Cavalcante, Rivelino Martins, do Nascimento, Ronaldo Ferreira

“…This work describes the development of an analytical methodology based on the modified QuEChERS method and GC/MS detection involving the analysis of 38…”
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