Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Marco T. Grassi"'
Autor:
Crislaine F. Bertoldi, Rafael G. Dolatto, Luiz F. L. de Oliveira, Lennon F. Reis, Maria C. Canela, Julyanne T. B. de Mélo, Abinoan da S. Rodrigues, Ana P. Paim, Marco T. Grassi
Publikováno v:
Química Nova, Vol 47, Iss 10 (2024)
Externí odkaz:
https://doaj.org/article/359c61f788e54ce89e765e48054d12b1
Autor:
Cristiano L. Chostak, Mônica S. de Campos, Simone B. da Silva, Gilberto Abate, Marco T. Grassi
Publikováno v:
Química Nova, Vol 38, Iss 3, Pp 356-363 (2015)
The use of MT-K10 Montmorillonite immobilized onto agarose was investigated in this work as an alternative binding phase in Diffusive Gradient in Thin Film (DGT) devices for the determination of metallic labile species. In addition, agarose itself wa
Externí odkaz:
https://doaj.org/article/d2eac0fd7a9d41d0ae3b08f5582c5f18
Publikováno v:
Química Nova, Vol 33, Iss 6, Pp 1307-1312 (2010)
Speciation of metals in a synthetic freshwater was comparatively evaluated using Anodic Stripping Voltammetry, Diffusive Gradients in Thin Films and a Chemical Equilibrium Model. The labile fractions of Cu and Zn quantified by DGT were similar to the
Externí odkaz:
https://doaj.org/article/321f78cb84464d85b46c32057879e49e
Publikováno v:
Química Nova, Vol 33, Iss 6, Pp 1254-1258 (2010)
In this work a sulfide quantification protocol using voltammetric methods was developed to evaluate the effect of dissolved sulfides on copper complexation. On the basis of pH, sulfide release from the dissociation of specific metal sulfide complexes
Externí odkaz:
https://doaj.org/article/8ea824ccd5e3419a9f29fd5fc7bd88ef
Publikováno v:
Química Nova, Vol 30, Iss 2, Pp 332-338 (2007)
Copper speciation and behavior in different rivers located in the city of Curitiba were evaluated in this work. Sampling locations were selected to cover different levels of urbanization regarding their anthropogenic occupation and land use. Results
Externí odkaz:
https://doaj.org/article/3de02cbc3afb43dfb09e3dc249f2921c
Publikováno v:
Química Nova, Vol 27, Iss 5, Pp 695-700 (2004)
Externí odkaz:
https://doaj.org/article/f46b4165b8124e26a0e534ae7830a89a
Publikováno v:
Brazilian Archives of Biology and Technology, Vol 45, Iss 1, Pp 81-87 (2002)
The FIA-photo-Fenton system is based on the flow oxidation of the organic matter. A small amount of the sample containing H2O2 is injected into the acidic flow solution of Fe2+, which passes through a tubular PTFE reactor irradiated with UV light. Th
Externí odkaz:
https://doaj.org/article/cee056fbcca44f8f815d7b5978877961
Autor:
Susana I. Córdoba de Torresi, Vera L. Pardini, Vitor F. Ferreira, Aldo J. G. Zarbin, Débora de A. Azevedo, Jorge M. David, Marco T. Grassi, Rochel M. Lago
Publikováno v:
Química Nova, Vol 33, Iss 5, Pp 1017-1017 (2010)
Externí odkaz:
https://doaj.org/article/aa2aa4a2d3b94068949d47afe2e463a6
Autor:
Daniel L. R. Annunciação, Fernanda V. Almeida, Emerson L. Y. Hara, Marco T. Grassi, Fernando F. Sodré
Publikováno v:
Química Nova, Vol 41, Iss 7, Pp 782-795
Flame retardants are substances mixed with numerous materials to inhibit the combustion process, reducing risks and damages caused by fires. Among these substances, polybrominated diphenyl ethers (PBDEs) have been widely used for decades due to their
Externí odkaz:
https://doaj.org/article/84c2985c4e5b4c20b7e71f408178b50c
Publikováno v:
Química Nova, Vol 40, Iss 6, Pp 634-642
This paper aims to present an overview of the ongoing of the Brazilian environmental chemistry over the last forty years inserted in the context of the Brazilian Chemical Society (SBQ). Initially, a brief history presents the main milestones and prem
Externí odkaz:
https://doaj.org/article/75a17bcee0444be08f3513ed4d395ae1