Zobrazeno 1 - 10
of 135
pro vyhledávání: '"Maria das Graças A. Korn"'
Autor:
Letícia M. Costa, Maria das Graças A. Korn, Jacira T. Castro, Wagna P. C. Santos, Edivan V. Carvalho, Ana Rita A. Nogueira
Publikováno v:
Química Nova, Vol 29, Iss 1, Pp 149-152 (2006)
Externí odkaz:
https://doaj.org/article/8c1786a17f4f4ae4ab038bbb562eadfc
Autor:
Jorge de O. Franco Jr., Maria das Graças A. Korn, Antonio Celso S. Costa, Anibal de Freitas Santos Jr., Leonardo S. G. Teixeira
Publikováno v:
Química Nova, Vol 24, Iss 2, Pp 195-199 (2001)
Externí odkaz:
https://doaj.org/article/f62bab25771b491ca6fcb474bac81247
Publikováno v:
Food Analytical Methods. 13:1681-1689
Two methods based on direct immersion single-drop microextraction (DI-SDME) and continuous-flow microextraction (CFME) were developed. Both methods were used for the determination of manganese by graphite furnace atomic absorption spectrometry. The r
Autor:
Alete Paixão Teixeira, Cristina M. Quintella, Maria das Graças Andrade Korn, Andrea P. Fernandes, Martha T. P. O. Castro
Publikováno v:
Química Nova, Vol 35, Iss 6, Pp 1133-1136 (2012)
A simple, fast and inexpensive method was developed to determine essential elements in pellets of rice samples using energy dispersive X-ray fluorescence spectrometry (EDXRF). The accuracy and precision were evaluated using Standard Reference Materia
Externí odkaz:
https://doaj.org/article/b1c0e54ee2f84d97adebe7b12d4d390b
Autor:
Vaniele S. Ribeiro, Sidnei O. Souza, Sarah A. R. Soares, Silvânio Silvério Lopes da Costa, Tarcísio S. Almeida, Maria das Graças Andrade Korn, Rennan Geovanny Oliveira Araujo
Publikováno v:
Environmental Geochemistry and Health. 42:2179-2193
In this work, a methodology for chemical speciation analysis of inorganic As and Sb in urban dust using slurry sampling and detection by fast sequential hydride generation atomic absorption spectrometry is proposed. Doehlert design and desirability f
Autor:
Marcus Vinícius Amaral Leal Filho, Lilian Lefol Nani Guarieiro, Maria das Graças Andrade Korn
Publikováno v:
Blucher Engineering Proceedings.
Autor:
Wellington Correia de Carvalho, Thaís Luz de Sousa, Ana Cláudia Lima de Jesus, Laís Araújo Souza, Luana Cardoso dos Santos, Saul Vislei Simões da Silva, Daniele Cristina Muniz Batista Santos, Aníbal de Freitas Santos Júnior, Maria das Graças Andrade Korn
Publikováno v:
Journal of Trace Elements in Medicine and Biology. 73:127032
The simultaneous administration of drugs with food can compromise the bioaccessibility and absorption of nutrients. The objective of this study was to evaluate the influence of the use of losartan potassium (LP), metformin hydrochloride (MH), and sim
Autor:
Alex S. N. Trindade, Alailson F. Dantas, Manoel P. Chagas, Maria das Graças Andrade Korn, Leonardo S. G. Teixeira, Isa S. Barbosa, Rafael Santana, Jorge S. Almeida
Publikováno v:
Food Analytical Methods. 13:268-274
This work presents a study to evaluate the migration of lead to cooked foods prepared in clay pots produced in a small community in Brazil. Clay pots produced in Maragogipinho, Bahia, Brazil, go through an artisanal vitrification process by the addit
Autor:
Luciane B. Oliveira, Wagna Piler Carvalho dos Santos, Leonardo S. G. Teixeira, Maria das Graças Andrade Korn
Publikováno v:
Food Analytical Methods. 13:195-202
The aim of this study was to evaluate the potential of applying energy dispersive X-ray fluorescence (EDXRF) spectrometry to determine Ca, K, P, Mg, Fe, Zn, Cu, Mn, and Al concentrations for direct analysis of cocoa powder, chocolate powder, and powd
Autor:
Filipe B. Santana, Wellington Correia de Carvalho, Daniele Cristina Muniz Batista dos Santos, Maria das Graças Andrade Korn, Lais A. Souza
Publikováno v:
Food Analytical Methods. 13:176-185
The objective of this study was to determine the total content and estimate the bioaccessible fraction of Cu, Fe, Mn, and Zn in chia seeds (Salvia hispanica L.) by inductively coupled plasma optical emission spectrometry (ICP OES). For the evaluation