Výsledky vyhledávání - "Fabio, de S Dias"

Development of a green analytical chemistry method for off-line preconcentration of nickel in water and sediments samples with mini-column with bamboo fibres

Autor: Fabio de S. Dias, Laís N. Pires, Amalia Luz Costa Pereira, Darllen G. da Silva

Publikováno v: International Journal of Environmental Analytical Chemistry. :1-11

In this work, is proposed an analytical method for the determination of nickel in natural water and sediment samples using solid-phase extraction with a mini-column of bamboo fibres modified with 5...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::14356396b2cfed8dfe4c723d92d372d4
https://doi.org/10.1080/03067319.2021.1987422

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A New Method for Determination of Mg, Ca, Zn, and Na in Cocoa Butter by FAAS Employing Extraction Induced by Emulsion Breaking and Multivariate Optimization

Autor: Fábio Alan Carqueija Amorim, Sheylla M. S. Queiroz, Fabio de S. Dias, Leonardo B. Guimarães, Daniel C. Lima, Marcos A. Bezerra, Erik Galvão Paranhos da Silva, Janclei Pereira Coutinho, Julia Carneiro Romero

Publikováno v: Food Analytical Methods. 15:458-467

This study aims to develop of a method based on extraction induced by emulsion breaking (EIEB) to determine Mg, Ca, Zn, and Na in cocoa butter by flame atomic absorption and emission spectrometry. The method has been optimized using Box-Behnken desig

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c6e0bb5ad541d4d1fa823fc142104cc0
https://doi.org/10.1007/s12161-021-02123-z

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Efficiency of two digestion methods in determining the presence of metals (Cd, Cu, Cr, Pb and Zn) in geopropolis produced by Melipona scutellaris

Autor: Josemário Santana Bonsucesso, Fabio de S. Dias, Antônio Leandro da Silva Conceição, Andreia Santos do Nascimento, Carlos Alfredo Lopes de Carvalho

Publikováno v: Revista Colombiana de Química. 50:24-29

This study evaluates the efficiency of acid extraction and total digestion to determine the presence of metals in geopropolis produced by the stingless bee Melipona scutellaris. Geopropolis samples were collected at five meliponaries in the city and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::57d1c9edbcd86fa4702495f04ee6882f
https://doi.org/10.15446/rev.colomb.quim.v50n2.90293

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Exploratory Analysis of South American Wines Using Artificial Intelligence

Autor: Candice N, Carneiro, Federico J V, Gomez, Adrian, Spisso, Maria Fernanda, Silva, Jorge L O, Santos, Fabio de S, Dias

Publikováno v: Biological trace element researchReferences.

In this work, microwave-induced plasma optical emission spectrometry was applied for multielement determination in South American wine samples. The analytes were determined after acid digestion of 47 samples of Brazilian and Argentinian wines. Then,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::e0f763bc8525dbe051c196625bef813c
https://pubmed.ncbi.nlm.nih.gov/36550265

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Multivariate optimization of an ultrasound-assisted extraction method of bioactive phenolic compounds in malagueta peppers (Capsicum frutescens)

Autor: Isaac Matheus de Jesus Silva, Fabio de S. Dias, Jamile da Cruz Caldas, Gisele Chagas Moreira, Candice N. Carneiro, Gilvanda Leão dos Anjos, Walter Nei Lopes dos Santos

Publikováno v: Food Analytical Methods. 14:2607-2616

The use of statistical tools in the optimization of bioactive extraction processes increases efficiency and reduces process costs, indicating the optimal conditions for obtaining the best results. The objective of this work was to optimize an ultraso

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6b63df77a3a64fd6d36e0a89a89f2b2a
https://doi.org/10.1007/s12161-021-02088-z

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Physical characterization of geopropolis produced byMelipona scutellaris(Hymenoptera: Apidae)

Autor: Oldair Vinhas Costa, Antonio Leandro da Silva Conceição, Andreia Santos do Nascimento, Josemário Santana Bonsucesso, Fabio de S. Dias, Carlos Alfredo Lopes de Carvalho

Publikováno v: Journal of Apicultural Research. :1-7

Geopropolis has medicinal potential and has been studied due to its complex chemical composition, with more than 300 compounds already identified. However, its physical components are still little ...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::994b5652265613a225bf135e90b96508
https://doi.org/10.1080/00218839.2021.1921468

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Biodiesel Trace Element Analysis by Energy Dispersive X-ray Fluorescence Spectrometry Using Magnetic Solid-Phase Microextraction

Autor: Maiara S. Oliveira, Leonardo S. G. Teixeira, Sarah A. R. Soares, Lucilia A. Meira, Fabio de S. Dias, Antônio Fernando de Souza Queiroz, Jorge S. Almeida

Publikováno v: Energy & Fuels. 35:510-518

One parameter to examine biodiesel quality has to do with the existence of metals, given that their presence can negatively affect fuel stability, by virtue of the alteration to their physicochemic...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::febd67e6eedf6ecd98827d11331489de
https://doi.org/10.1021/acs.energyfuels.0c02731

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