Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Luiz Antonio Fonseca de Godoy"'
Publikováno v:
Química Nova, Vol 33, Iss 10, Pp 2042-2045 (2010)
An efficient synthesis of the marine metabolite 3-bromoverongiaquinol (1) and the first total synthesis of 5-monobromocavernicolin (2), both isolated from the marine sponge Aplysina cavernicola, have been described based on the 1,2 addition of the li
Externí odkaz:
https://doaj.org/article/a9adb1bd8de14d20a47320b36f1535d1
Autor:
Marcio Pozzobon Pedroso, Luiz Antonio Fonseca de Godoy, Carlos Henrique de Vasconcellos Fidélis, Ernesto Correa Ferreira, Ronei Jesus Poppi, Fabio Augusto
Publikováno v:
Química Nova, Vol 32, Iss 2, Pp 422-430 (2009)
This paper presents the fundamental principles, instrumentation and selected applications of comprehensive two-dimensional gas chromatography (GC × GC). In this technique, introduced in 1991, two capillary columns are coupled and proper modulating i
Externí odkaz:
https://doaj.org/article/5a218913c6a54f3182c1c3dc3604dc29
Autor:
Ronei J. Poppi, Fabio Augusto, Luiz Antonio Fonseca de Godoy, Marcio Pozzobon Pedroso, Leandro Wang Hantao
Publikováno v:
Analytica Chimica Acta. 699:120-125
The use of multivariate curve resolution (MCR) to build multivariate quantitative models using data obtained from comprehensive two-dimensional gas chromatography with flame ionization detection (GC×GC-FID) is presented and evaluated. The MCR algori
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::17cd5e4df5b82efde107674315ce225c
https://doi.org/10.1016/j.aca.2011.05.003
https://doi.org/10.1016/j.aca.2011.05.003
Autor:
Marcio Pozzobon Pedroso, Luiz Antonio Fonseca de Godoy, Ernesto Correa Ferreira, Ronei J. Poppi, Fabio Augusto
Publikováno v:
Journal of Chromatography A. 1218:1663-1667
The estimation of physicochemical parameters such as distillation points and relative densities still plays an important role in the quality control of gasoline and similar fuels. Their measurements according to standard ASTM procedures demands speci
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8f2bd1e275288426e9fc1d6bb0a390ea
https://doi.org/10.1016/j.chroma.2011.01.056
https://doi.org/10.1016/j.chroma.2011.01.056
Publikováno v:
Química Nova, Volume: 33, Issue: 10, Pages: 2042-2045, Published: 2010
Química Nova, Vol 33, Iss 10, Pp 2042-2045 (2010)
Química Nova v.33 n.10 2010
Química Nova
Sociedade Brasileira de Química (SBQ)
instacron:SBQ
Química Nova, Vol 33, Iss 10, Pp 2042-2045 (2010)
Química Nova v.33 n.10 2010
Química Nova
Sociedade Brasileira de Química (SBQ)
instacron:SBQ
An efficient synthesis of the marine metabolite 3-bromoverongiaquinol (1) and the first total synthesis of 5-monobromocavernicolin (2), both isolated from the marine sponge Aplysina cavernicola, have been described based on the 1,2 addition of the li
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::047b23e43c8531c05461f56e550ceda7
https://doi.org/10.1590/s0100-40422010001000007
https://doi.org/10.1590/s0100-40422010001000007
Autor:
Marcio Pozzobon Pedroso, Ronei J. Poppi, Fabio Augusto, Ernesto Correa Ferreira, Luiz Antonio Fonseca de Godoy
Publikováno v:
Journal of Chromatography A. 1201:176-182
A method to detect potential adulteration of commercial gasoline (Type C gasoline, available in Brazil and containing 25% (v/v) ethanol) is presented here. Comprehensive two-dimensional gas chromatography with flame ionization detection (GC × GC–F
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::edef86adc6b5c82392268823f25b5120
https://doi.org/10.1016/j.chroma.2008.05.092
https://doi.org/10.1016/j.chroma.2008.05.092
Autor:
Ronei J. Poppi, Fabio Augusto, Luiz Antonio Fonseca de Godoy, Ernesto Correa Ferreira, Marcio Pozzobon Pedroso, Carlos H.V. Fidelis
Publikováno v:
Analytical Letters. 41:1603-1614
In brazil, gasoline is usually adulterated by diesel oil, ethanol (in addition to the amount legally specified), petrochemical raffinates, and kerosene. This is an illegal action performed mainly in an attempt to raise profits. Therefore, methods for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d0511f446aa0760d84a18637675bf4e6
https://doi.org/10.1080/00032710802122222
https://doi.org/10.1080/00032710802122222
The focus of this chapter is the application of multiway calibration with GC × GC data. The amount of information contained on a GC × GC chromatogram is considerably larger, which causes manual interpretation of a data set into a very difficult tas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d187688c7d7154cff3adc1e485316e14
https://doi.org/10.1016/b978-0-444-63527-3.00011-4
https://doi.org/10.1016/b978-0-444-63527-3.00011-4
Autor:
Fabio Augusto, Marcio Pozzobon Pedroso, Ronei J. Poppi, Leandro Wang Hantao, Luiz Antonio Fonseca de Godoy
Publikováno v:
Journal of the Brazilian Chemical Society, Volume: 24, Issue: 4, Pages: 645-650, Published: APR 2013
Journal of the Brazilian Chemical Society v.24 n.4 2013
Journal of the Brazilian Chemical Society
Sociedade Brasileira de Química (SBQ)
instacron:SBQ
Journal of the Brazilian Chemical Society v.24 n.4 2013
Journal of the Brazilian Chemical Society
Sociedade Brasileira de Química (SBQ)
instacron:SBQ
In this work, a method for differentiation of gasoline according to its geographical origin is presented. Comprehensive two-dimensional gas chromatography-flame ionization detection (GC×GC-FID) combined with multivariate analysis was used to differe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f37f95d48a561483339603739987c4e9
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532013000400017&lng=en&tlng=en
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532013000400017&lng=en&tlng=en
Autor:
Fabio Augusto, Luiz Antonio Fonseca de Godoy, Marcio Pozzobon Pedroso, Ronei J. Poppi, Leandro Wang Hantao
Publikováno v:
Talanta. 83(4)
A new approach for target quantitative analysis for comprehensive two-dimensional gas chromatography (GC × GC), interval Multi-way Partial Least Square (iNPLS) is presented and evaluated in this paper. In iNPLS, the two-dimensional chromatogram is s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::54644b8411cbe8fd98f36d00d205be60
https://pubmed.ncbi.nlm.nih.gov/21215867
https://pubmed.ncbi.nlm.nih.gov/21215867