Zobrazeno 1 - 10
of 92
pro vyhledávání: '"Walter Nei Lopes Dos Santos"'
Autor:
Carine Pereira da Silva, Marluce Oliveira da Guarda Souza, Walter Nei Lopes dos Santos, Laiana Oliveira Bastos Silva
Publikováno v:
The Scientific World Journal, Vol 2019 (2019)
In this study, mechanical mixtures of sugarcane bagasse and iron salts (nitrate, acetate, or a mixture of both) were subjected to thermal decomposition for producing iron oxide and carbonaceous composite materials, which were evaluated as adsorbents
Externí odkaz:
https://doaj.org/article/e710ff4cb1d04b73828fc468a9f94634
Autor:
Rafael Conceição Costa, Jéssica Costa Leite, Geovani Cardoso Brandão, Sérgio Luis Costa Ferreira, Walter Nei Lopes dos Santos
Publikováno v:
Food Analytical Methods.
Autor:
Vagner Cardoso Da Silva, Bárbara Elizabeth Alves de Magalhães, Tatiana Barbosa dos Santos Magalhães, Elisalva Teixeira Guimarães, Alessandra da Silva Guedes, Milleno Dantas Mota, Walter Nei Lopes Dos Santos, Bruno Antonio Veloso Cerqueira, Aníbal de Freitas Santos Júnior
Publikováno v:
Revista Colombiana de Ciencias Químico-Farmacéuticas. 51
Introduction: Tradescantia zebrina is a species used mainly in South America, with few reports about its chemical composition and bioactivity. Aim: To determine phenolic bioactive compounds, for the first time in the literature, and the antioxidant a
Autor:
Augusto Cezar Magalhães Aleluia, Morgana de Souza Nascimento, Ana Maria Pinto dos Santos, Walter Nei Lopes dos Santos, Aníbal de Freitas Santos Júnior, Sergio Luís Costa Ferreira
Publikováno v:
Spectrochimica Acta Part B: Atomic Spectroscopy. 205:106689
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
Autor:
Emmanuelle Ferreira Requião Silva, Débora de Andrade Santana, Lucas Almir Cavalcante Minho, Walter Nei Lopes dos Santos, Erik Galvão Paranhos da Silva, Maria Celeste da Silva Sauthier, Jamile da Cruz Caldas, Bruna Rosa da Silva Santos
Publikováno v:
Food Analytical Methods. 13:1176-1189
A previously fully validated method using high-performance liquid chromatography with diode array detection (HPLC-DAD) was applied to determine 12 bioactive phenolic compounds in 9 different fruits consumed in Salvador, Bahia, Brazil. A central compo
Autor:
Walter Nei Lopes dos Santos, Ana Maria Pinto dos Santos, Wagna Piler Carvalho dos Santos, Geovani C. Brandao, Bruna Rosa da Silva Santos, Emmanuelle Ferreira Requião Silva, Mariângela Vieira Lopes Silva, Erik Galvão Paranhos da Silva
Publikováno v:
Brazilian Journal of Development. 6:21576-21597
Autor:
Walter Nei Lopes dos Santos, Aníbal de Freitas Santos Júnior, Daniel Levi França da Silva, Meire Ane Pitta da Costa, Fernanda de Souza Dias
Publikováno v:
Analytical Methods. 12:1711-1719
Mineral water and isotonic sports drinks (hydroelectrolytic supplement) are sources of electrolytes, and one among them is zinc, an important microelement for several functions of the body. In this study, a novel on-line preconcentration analytical m
Autor:
Lucas Almir Cavalcante Minho, Walter Nei Lopes dos Santos, Débora de Andrade Santana, Geovani C. Brandao, Oseas Silva Santos, Heloysa Martins Carvalho Andrade
Publikováno v:
Microchemical Journal. 147:102-111
In this work, an extraction and preconcentration flow system using mini-column packed with cellulose-coated CoFe2O4 was developed for the determination of bioactive compounds in vinegar samples by high-performance liquid chromatography with diode arr