Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Itânia P. Soares"'
Autor:
Maria S. M. Quintino, Waldemar P. Oliveira Filho, Fábio S. Vinhado, Warley G. Santos, Rodrigo B. C. Dutra, Patrícia A. Oliveira, Patrícia K. G. Costa, Itânia P. Soares
Publikováno v:
Química Nova, Vol 40, Iss 7, Pp 818-823
Currently, there are two mixtures of biodiesel/diesel fuel sold in Brazil: BX/S500 and BX /S10 (X = volume/volume biodiesel percentage; S500 and S10 = sulfur content in diesel fuels - 500 ppm and 10 ppm, respectively). In order to differentiate these
Externí odkaz:
https://doaj.org/article/d85ad8cd18524664af1ccbe1e58ec1fc
Publikováno v:
Energy & Fuels. 23:4143-4148
The aim of the present work was to verify the influence caused by the contamination or the addition of residual oil in the blends commercialized in Brazil [2% (v/v) of biodiesel in petrodiesel B2] in physical-chemistry parameters usually used to moni
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c2ce91f35e5bc57fce3132c29bbd3aac
https://doi.org/10.1021/ef900302q
https://doi.org/10.1021/ef900302q
Autor:
Eustáquio V.R. Castro, Renzo C. Silva, Itânia P. Soares, Thais F. Rezende, Isabel C. P. Fortes
Publikováno v:
Energy & Fuels. 22:2079-2083
The partial least-squares (PLS) calibration method as a chemometric tool was used to develop a calibration model using Fourier transform infrared spectroscopy (FTIR) spectra data of biodiesel samples from different sources, such as cotton, castor, an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3b947858cd59f0a815777e7e3b92cf95
https://doi.org/10.1021/ef700531n
https://doi.org/10.1021/ef700531n
Autor:
Thais F. Rezende, Rita de Cássia, Isabel Cristina Pereira Fortes, Itânia P. Soares, C. Pereira, Cláudio Gouvêa dos Santos
Publikováno v:
Journal of the Brazilian Chemical Society.
1 . The explained variance was of 99% for the first three components. To quantify the raw soybean oil partial least squares (PLS) tool was applied. The best results were obtained for the spectral range of 1800-1000 cm -1 , with values of RMSEP (root
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e1e3fc4163cf1519f29a60a400635696
https://doi.org/10.1590/s0103-50532011000700005
https://doi.org/10.1590/s0103-50532011000700005
Publikováno v:
Eclética Química, Vol 35, Iss 2, Pp 71-78 (2018)
The aim of this present work was to provide a more fast, simple and less expensive to analyze sulfur content in diesel samples than by the standard methods currently used. Thus, samples of diesel fuel with sulfur concentrations varying from 400 and 2
Externí odkaz:
https://doaj.org/article/411ff152359e4c419792d37682344b41
Publikováno v:
Química Nova, Vol 37, Iss 4, Pp 709-715 (2014)
Use of biomass as an alternative to nonrenewable feedstock for energy, materials, and chemicals is currently a prominent theme for industry and R Countries like Brazil, USA, and Germany are spending resources and efforts to promote a green economy ba
Externí odkaz:
https://doaj.org/article/9dfad02b0fc440568bb53637e54a36eb
Autor:
Itânia Pinheiro Soares, Renato Monteiro de Oliveira Russo, Ravi Govinda Dardot Prates, Rodinei Augusti, Isabel Cristina Pereira Fortes, Vânya Márcia Duarte Pasa
Publikováno v:
Química Nova, Vol 34, Iss 8, Pp 1439-1442 (2011)
Direct infusion electrospray ionization mass spectrometry in the negative ion mode, ESI(-)-MS and Fourier transform infrared spectroscopy (FTIR) were used together with partial least squares (PLS) as a tool to determine B3 adulteration (B3 - mixture
Externí odkaz:
https://doaj.org/article/43b05e80796c4560b4856efef988cab8