Zobrazeno 1 - 10
of 47
pro vyhledávání: '"Edmar Martendal"'
Autor:
Larissa Chimilouski, William H. Slominski, Ana I. Tillmann, Daniella Will, Aaron M. dos Santos, Giliandro Farias, Edmar Martendal, Karine P. Naidek, Fernando R. Xavier
Publikováno v:
Molecules, Vol 29, Iss 11, p 2634 (2024)
The catalytic properties of three copper complexes, [Cu(en)2](ClO4)2 (1), [Cu(amp)2](ClO4)2, (2) and [Cu(bpy)2](ClO4)2 (3) (where en = ethylenediamine, amp = 2-aminomethylpyridine and bpy = 2,2′-bipyridine), were explored upon the oxidation of benz
Externí odkaz:
https://doaj.org/article/ee74db69323843cc8227d29b3bc3e36f
Autor:
Vanessa Stein, Alessandro Cazonatto Galvão, Alexandre Tadeu Paulino, Alex Molina Manfredi, Edmar Martendal, Tainara Vieira, Weber da Silva Robazza
Publikováno v:
Water, Vol 16, Iss 10, p 1415 (2024)
All water destined for human consumption must be subjected to disinfection processes via chlorination with the aim of eliminating the risk of the transmission of waterborne diseases. However, the treatment of water using this method leads to the form
Externí odkaz:
https://doaj.org/article/6c1e7f2bceb94cd6af30cf693c421c1a
Autor:
Joyce Nunes Bianchin, Renata Mior, Edmar Martendal, Jeferson Schneider Carletto, Eduardo Carasek
Publikováno v:
Eclética Química, Vol 33, Iss 4, Pp 25-31 (2018)
In this study a new method for Ni(II) determination in aqueous samples using solid phase extraction coupled to a flow injection system and flame atomic absorption spectrometry was developed. The sorbent used for Ni(II) preconcentration and extraction
Externí odkaz:
https://doaj.org/article/5e3528e5785141cc88faddd51e7e019c
Publikováno v:
Eclética Química, Vol 39, Iss 1, Pp 68-80 (2018)
In this study new methods for determination of cadmium in certified biological samples using mate (llex paraguariensis) and black tea (Camellia sinensis, L.) as biosorbents in an on-line preconcentration system coupled to flame atomic absorption spec
Externí odkaz:
https://doaj.org/article/3305ff57f48740ad8ba90d6b7ecb2534
Publikováno v:
Química Nova, Vol 36, Iss 7, Pp 942-946 (2013)
In this study, a method for determination of hexavalent chromium in aqueous samples using liquid-liquid microextraction (LLME) and detection by Flame Atomic Absorption Spectrometry (F AAS) was developed. The LLME procedure was based on the extraction
Externí odkaz:
https://doaj.org/article/cbcd67405bbd4e1d89b4430070f963d5
Publikováno v:
Orbital: The Electronic Journal of Chemistry, Vol 1, Iss 3, Pp 238-250 (2009)
RESUMO: Uma metodologia analítica simples e rápida foi desenvolvida utilizando a microextração em fase sólida em modo headspace (HS-SPME) para a determinação de clorofórmio em 15 amostras de águas saborizadas. A extração do clorofórmio fo
Externí odkaz:
https://doaj.org/article/8b12f85f84c842938b39488e36dde74f
Publikováno v:
Orbital: The Electronic Journal of Chemistry, Vol 1, Iss 3, Pp 238-250 (2009)
A simple and fast analytical methodology was developed using the headspace-solid phase micro extration (HS-SPME) for the determination of chloroform in 15 samples of flavoured waters. The extraction of the chloroform was performed with the fiber CAR-
Externí odkaz:
https://doaj.org/article/93b86260eeb3421db8f4193fcccea94c
Autor:
Sandip Munshi, Arup Sinha, Solomon Yiga, Sridhar Banerjee, Reena Singh, Md. Kamal Hossain, Matti Haukka, Andrei Felipe Valiati, Ricardo Dagnoni Huelsmann, Edmar Martendal, Rosely Peralta, Fernando Xavier, Ola F. Wendt, Tapan K. Paine, Ebbe Nordlander
Publikováno v:
Dalton Transactions. 51:870-884
The reactivities of Fe(iv) oxido complexes of two pentadentate ligands are related to steric and electronic properties of the ligands.
Autor:
Larissa Chimilouski, Fredricka Morgan, Danushka Ekanayake, Nour El-Harakeh, Rosely A. Peralta, Edmar Martendal, Cláudio N. Verani, Fernando R. Xavier
Publikováno v:
Journal of inorganic biochemistry. 240
Inspired by copper-containing enzymes such as galactose oxidase and catechol oxidase, in which distinct coordination environments and nuclearities lead to specific catalytic activities, we summarize here the catalytic properties of dinuclear and mono
Autor:
Ricardo Dagnoni Huelsmann, Fernando R. Xavier, Edmar Martendal, Andrei Felipe Vailati, Adailton J. Bortoluzzi, Rosely A. Peralta
Publikováno v:
New Journal of Chemistry. 44:2514-2526
Although univariate methodologies facilitate the interpretation of results, they may not correspond to the ideal conditions for a catalytic process. Herein, we examine the catalytic activity of an iron(III) (1) and a copper(II) (2) complex under mild