Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Leandro Kolling"'
Autor:
Ana Carla S. Boeira, Leandro Kolling, Samuel J. Santos, Luiz A. M. Fontoura, Márcia Messias da Silva
Publikováno v:
Química Nova, Vol 47, Iss 8 (2024)
In this work, babassu FAME samples were synthesized by transesterification reaction under alkaline catalysis with sodium glyceroxide and by two steps process with KOH followed by H2SO4 as catalysts. A sequential multi-element method for determination
Externí odkaz:
https://doaj.org/article/ee54daaf684b44dea559c88fc339496b
Autor:
Cristian Krause, Alexandre Schneider, Márcia da Silva, Marina Mazzei, Leandro Kolling, Fernando Leal
Publikováno v:
Journal of the Brazilian Chemical Society.
A new approach involving square wave anodic stripping voltammetry was developed to simultaneously determine cadmium and lead and, in the same cell, sequentially copper, in biodiesel after extraction induced by microemulsion breaking. The composition
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5af1ac488205cf2d83b59dbb7b36679c
https://doi.org/10.21577/0103-5053.20220142
https://doi.org/10.21577/0103-5053.20220142
Publikováno v:
Talanta. 238:122998
In this work, a method for total sulphur determination in automotive gasoline using dried matrix spot sampling is proposed. The method is based on the deposition of the sample on a cellulose-based filter paper and subsequent sulphur quantification vi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ab04e3dbaf1ad301d16bb575dd26005b
https://doi.org/10.1016/j.talanta.2021.122998
https://doi.org/10.1016/j.talanta.2021.122998
Autor:
Alexandre de Jesus, Morgana B. Dessuy, Mariana da Luz Potes, Márcia M. Silva, Leandro Kolling, Maria Goreti R. Vale
Publikováno v:
Analytical Methods. 8:8165-8172
In this work the determination of mercury in fish samples by photochemical vapor generation (PVG) was investigated. Fish samples were dissolved in tetramethylammonium hydroxide, followed by the addition of n-propanol and water. Standards and samples
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f731ff8b1393949036996e2ceb194725
https://doi.org/10.1039/c6ay02342h
https://doi.org/10.1039/c6ay02342h
Publikováno v:
Talanta. 205:120105
In this work a simple and practical method for the determination of Pb and Ni in automotive gasoline by solid sampling high-resolution continuum source graphite furnace atomic absorption spectrometry was investigated. In the proposed method, disks of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::10a822903c7a2d8f8ac31e6cdf036ed5
https://doi.org/10.1016/j.talanta.2019.06.105
https://doi.org/10.1016/j.talanta.2019.06.105