Search Results - "de Souza, Vanderléa"

Blends of Soybean Biodiesel with Petrodiesel: Direct Quantitation via Mass Spectrometry by Abdelnur, Patrícia V., Saraiva, Sergio A., Catharino, Rodrigo R., Coelho, Mirela, Schwab, Nicolas, Garcia, Camila M., Schuchardt, Ulf, Souza, Vanderléa de, Eberlin, Marcos N.

“…Quantitation and identification of blends of soybean biodiesel with petrodiesel were performed via mass spectrometry using two ionization techniques:…”
Get full text

Estimating vulnerability to risks: an application in a biofuel supply chain by dos Santos, Silvio Francisco, Brandi, Humberto Siqueira, Borschiver, Suzana, de Souza, Vanderléa

“…In the present work, we propose a theoretical model to identify and prioritize risks involved in a biofuel supply chain. We adopt a set of indicators…”
Get full text

A Highly Effective Antioxidant and Artificial Marker for Biodiesel by Alberici, Rosana M, Simas, Rosineide C, Abdelnur, Patricia V, Eberlin, Marcos N, de Souza, Vanderléa, de Sá, Gilberto F, Daroda, Romeu J

“…Biodiesel is composed of saturated and unsaturated methyl esters of fatty acids formed via transesterification of vegetable oil or animal fat. This chemical…”
Get full text

Mapping Sustainable Structural Dimensions for Managing the Brazilian Biodiesel Supply Chain by dos Santos, Silvio Francisco, Borschiver, Suzana, de Souza, Vanderléa

“…It has been widely discussed in Brazil that the production of biodiesel should look for ways for increasing competitiveness considering the balance among…”
Get full text

Determination of As in Vegetable Oil and Biodiesel by Graphite Furnace Atomic Absorption Spectrometry by Vieira, Mariana Antunes, de Oliveira, Lígia Claudia Castro, Gonçalves, Rodrigo Araújo, de Souza, Vanderléa, de Campos, Reinaldo Calixto

“…In this work, an alternative procedure for the determination of As in vegetable oils and biodiesel of different origins by graphite furnace atomic absorption…”
Get full text

The reproducible normality of the crystallographic B-factor by Ramos, Natália Gonçalves, Sarmanho, Gabriel Fonseca, de Sá Ribeiro, Fernando, de Souza, Vanderléa, Lima, Luís Maurício T.R.

“…Reproducibility determines the utility of a measurement. In structural biology the reproducibility permeate areas such as mechanics, data measurement, data…”
Get full text

Single-Shot Biodiesel Analysis: Nearly Instantaneous Typification and Quality Control Solely by Ambient Mass Spectrometry by Abdelnur, Patricia V, Eberlin, Livia S, de Sá, Gilberto F, de Souza, Vanderlea, Eberlin, Marcos N

“…Using a simple and easily implemented desorption/ionization mass spectrometry technique, a tiny droplet of biodiesel placed on the surface of a sheet of paper…”
Get full text

Analysis of fuels via easy ambient sonic-spray ionization mass spectrometry by Alberici, Rosana M., Simas, Rosineide C., de Souza, Vanderléa, de Sá, Gilberto F., Daroda, Romeu J., Eberlin, Marcos N.

“…The desorption and ionization of analytes directly from surfaces or natural matrices under ambient conditions has greatly simplified chemical analysis by mass…”
Get full text

Development of a certified reference material: ethanol in water - a practical case by Souza, Vanderléa de, Caixeiro, Janaína Marques R., Silva, Rafael A. L. da, Pedro, Leandro R., Borges, Renata M. H., Couto, Paulo R. G.

“…The present work describes the development of a certified reference material (CRM) composed of solutions of ethanol in water in five different concentrations,…”
Get full text

Biodiesel Typification and Quality Control by Direct Infusion Electrospray Ionization Mass Spectrometry Fingerprinting by Catharino, Rodrigo R, Milagre, Humberto M. S, Saraiva, Sergio A, Garcia, Camila M, Schuchardt, Ulf, Eberlin, Marcos N, Augusti, Rodinei, Pereira, Rosana C. L, Guimarães, Manoel J. R, de Sá, Gilberto F, Caixeiro, Janaína Marques R, de Souza, Vanderléa

“…Direct infusion electrospray ionization mass spectrometry (ESI-MS) of aqueous/methanolic extracts of biodiesel samples is shown to permit simple and fast…”
Get full text

Determination of PAHs: A Practical Example of Validation and Uncertainty Assessment by Guimarães, Evelyn de F., Rodrigues, Janaína M., Cruz, Marcus H. C. de la, Sartori, André V., de Souza, Vanderléa, Figueroa-Villar, José Daniel

“…The objective of this study was to present a reliable and practical example of method validation and uncertainty assessment with an analytical method for the…”
Get full text

Evaluation of the stability of ethanol in water certified reference material: measurement uncertainty under transport and storage conditions by de Souza, Vanderléa, Rodrigues, Janaína Marques, da C. Cunha Bandeira, Raquel Duarte, das Neves Valente, Laura A., Sousa, Marcus Vinícius Barreto, da Silva, Viviane Fernandes, da Silva, Rafael Agostinho Lemos

“…This study simulated the transport and storage conditions of ethanol in water certified reference material (CRM) produced by the Chemical Metrology Division of…”
Get full text

Development of a certified reference material for cachaça: an effective material for quality assurance by Monteiro, Tânia Maria, Rodrigues, Janaína Marques, Rego, Eliane Cristina Pires do, de Carvalho Rocha, Werickson Fortunato, de Mattos, Juliana Swensson, Nunes, Fernanda Figueiredo, da Cunha, Valnei Smarçaro, de la Cruz, Marcus Henrique Campino, de Souza, Vanderléa

“…Cachaça is the typical and genuine denomination for the sugar cane beverage produced in Brazil. It has an alcoholic content between 38 and 48 % by volume, at…”
Get full text

Vibrational study of dialkylphosphonates: di- n-propyl- and di- i-propylphosphonates by semiempirical and ab initio methods by Carauta, Alexandre N.M., de Souza, Vanderléa, Hollauer, Eduardo, Téllez S., Claudio A.

“…Fourier transform infrared and Fourier transform Raman spectra of n-C 3H 7 and i-C 3H 7 dialkylphosphonates have been obtained. Semiempirical AM1 and the ab…”
Get full text

Analysis of biodiesel and biodiesel-petrodiesel blends by high performance thin layer chromatography combined with easy ambient sonic-spray ionization mass spectrometry by Eberlin, Livia S, Abdelnur, Patricia V, Passero, Alan, de Sa, Gilberto F, Daroda, Romeu J, de Souza, Vanderlea, Eberlin, Marcos N

“…High performance thin layer chromatography (HPTLC) combined with on-spot detection and characterization via easy ambient sonic-spray ionization mass…”
Get more information

Structural analysis and Fourier transform infrared and Raman spectra of dibutoxyphosphoryl benzylisothiourea by Téllez S, Claudio A, de Souza, Vanderléa, Izolani, Antônio O

“…A structural analysis for dibutoxyphosphoryl benzylisothiourea (DBBT) was carried out by mass spectrometry, 1H NMR, 13C NMR, infrared and Raman spectroscopy…”
Get full text

Chemical profile of meta-chlorophenylpiperazine (m-CPP) in ecstasy tablets by easy ambient sonic-spray ionization, X-ray fluorescence, ion mobility mass spectrometry and NMR by Romão, Wanderson, Lalli, Priscila M., Franco, Marcos F., Sanvido, Gustavo, Schwab, Nicolas V., Lanaro, Rafael, Costa, José Luiz, Sabino, Bruno D., Bueno, Maria Izabel M. S., de Sa, Gilberto F., Daroda, Romeu J., de Souza, Vanderlea, Eberlin, Marcos N.

“…Meta-chlorophenylpiperazine ( m -CPP) is a new illicit drug that has been sold as ecstasy tablets. Easy ambient sonic-spray ionization mass spectrometry…”
Get full text

Tautomerism of Diisopropoxyphosphoryl Benzylisothiourea by Lin, Whei Oh, De Souza, Vanderléa

“…As part of our studies in preparation and physical properties of Potential ligands containing l-phosphoryl(P˭O)-3-3-carbonyI(C˭X, X˭NH, O or S) group, we have…”
Get full text

A vibrational study of di-i-propoxyphosphoryl benzylisothiourea by Téllez S, Claudio A, de Souza, Vanderléa, Oh Lin, Whei

“…The Fourier transform infrared and Raman spectra of di-i-propoxyphosphoryl benzylisothiourea (DPB) (1) in the solid state and in solutions of CCl 4, CHCl 3,…”
Get full text

Used Frying Oil: A Proper Feedstock for Biodiesel Production? by Alberici, Rosana M., de Souza, Vanderlea, de Sá, Gilberto F., Morelli, Sidney R., Eberlin, Marcos N., Daroda, Romeu J.

“…Used frying oil seems to be an economically viable and environmentally attractive alternative for biodiesel production, but the acceptance and successful use…”
Get full text