Search Results - "Daroda, Romeu"

Separation of steroid isomers by ion mobility mass spectrometry by Ahonen, Linda, Fasciotti, Maíra, Gennäs, Gustav Boije af, Kotiaho, Tapio, Daroda, Romeu J., Eberlin, Marcos, Kostiainen, Risto

“…•We report a reliable, fast and repeatable method to separate steroid isomers.•We compare two different drift gases in order to achieve optimum…”
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Protomers: formation, separation and characterization via travelling wave ion mobility mass spectrometry by Lalli, Priscila M., Iglesias, Bernardo A., Toma, Henrique E., de Sa, Gilberto F., Daroda, Romeu J., Silva Filho, Juvenal C., Szulejko, Jan E., Araki, Koiti, Eberlin, Marcos N.

“…Travelling wave ion mobility mass spectrometry (TWIM‐MS) with post‐TWIM and pre‐TWIM collision‐induced dissociation (CID) experiments were used to form,…”
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Separation of isomeric disaccharides by traveling wave ion mobility mass spectrometry using CO2 as drift gas by Fasciotti, Maíra, Sanvido, Gustavo B., Santos, Vanessa G., Lalli, Priscila M., McCullagh, Michael, de Sá, Gilberto F., Daroda, Romeu J., Peter, Martin G., Eberlin, Marcos N.

“…The use of CO2 as a massive and polarizable drift gas is shown to greatly improve peak‐to‐peak resolution (Rp‐p), as compared with N2, for the separation of…”
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Petroleomics by Traveling Wave Ion Mobility–Mass Spectrometry Using CO2 as a Drift Gas by Fasciotti, Maíra, Lalli, Priscila M, Klitzke, Clécio F, Corilo, Yuri E, Pudenzi, Marcos A, Pereira, Rosana C. L, Bastos, Wagner, Daroda, Romeu J, Eberlin, Marcos N

“…The technique of choice for petroleomics has been ultra-high-resolution and high-accuracy Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR…”
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Baseline resolution of isomers by traveling wave ion mobility mass spectrometry: investigating the effects of polarizable drift gases and ionic charge distribution by Lalli, Priscila M., Corilo, Yuri E., Fasciotti, Maíra, Riccio, Maria Francesca, de Sa, Gilberto F., Daroda, Romeu J., Souza, Gustavo H. M. F., McCullagh, Michael, Bartberger, Michael D., Eberlin, Marcos N., Campuzano, Iain D. G.

“…We have studied the behavior of isomers and analogues by traveling wave ion mobility mass spectrometry (TWIM‐MS) using drift‐gases with varying masses and…”
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Direct Method for the Determination of the Iodine Value of Biodiesel by Quantitative Nuclear Magnetic Resonance (q super(1)H NMR) Spectroscopy by Sarpal, A S, Silva, Samantha R, Silva, Paulo RM, Monteiro, Thays V, Itacolomy, Julia, Cunha, Valnei S, Daroda, Romeu J

“…A direct, rapid, and convenient method for the determination of iodine value (IV) of biodiesels from vegetable oils has been developed by the application of…”
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NMR techniques for determination of lipid content in microalgal biomass and their use in monitoring the cultivation with biodiesel potential by Sarpal, Amarjit S, Teixeira, Cláudia M. L. L, Silva, Paulo Roque Martins, da Costa Monteiro, Thays Vieira, da Silva, Júlia Itacolomy, da Cunha, Valnei Smarcaro, Daroda, Romeu José

“…In the present investigation, the application of NMR spectroscopic techniques was extensively used with an objective to explore the biodiesel potential of…”
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Determination of lipid content of oleaginous microalgal biomass by NMR spectroscopic and GC–MS techniques by Sarpal, Amarijt S., Teixeira, Claudia M. L. L., Silva, Paulo R. M., Lima, Gustavo M., Silva, Samantha R., Monteiro, Thays V., Cunha, Valnei S., Daroda, Romeu J.

“…Direct methods based on 1 H NMR spectroscopic techniques have been developed for the determination of neutral lipids (triglycerides and free fatty acids) and…”
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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…”
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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…”
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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…”
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Direct Method for the Determination of the Iodine Value of Biodiesel by Quantitative Nuclear Magnetic Resonance (q1H NMR) Spectroscopy by Sarpal, A. S, Silva, Samantha R, Silva, Paulo R. M, Monteiro, Thays V, Itacolomy, Júlia, Cunha, Valnei S, Daroda, Romeu J

“…A direct, rapid, and convenient method for the determination of iodine value (IV) of biodiesels from vegetable oils has been developed by the application of…”
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The influence of different referencing methods on the accuracy of δ(13) C value measurement of ethanol fuel by gas chromatography/combustion/isotope ratio mass spectrometry by Neves, Laura A, Rodrigues, Janaína M, Daroda, Romeu J, Silva, Paulo R M, Ferreira, Alexandre A, Aranda, Donato A G, Eberlin, Marcos N, Fasciotti, Maíra

“…Brazil is the largest producer of sugar cane bioethanol in the world. Isotope ratio mass spectrometry (IRMS) is the technique of choice to certify the…”
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The influence of different referencing methods on the accuracy of [delta]13C value measurement of ethanol fuel by gas chromatography/combustion/isotope ratio mass spectrometry by Neves, Laura A, Rodrigues, Janaína M, Daroda, Romeu J, Silva, Paulo R M, Ferreira, Alexandre A, Aranda, Donato A G, Eberlin, Marcos N, Fasciotti, Maíra

“…Rationale Brazil is the largest producer of sugar cane bioethanol in the world. Isotope ratio mass spectrometry (IRMS) is the technique of choice to certify…”
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Biodiesel Potential of Oleaginous Yeast Biomass by NMR Spectroscopic Techniques by Sarpal, A. S, Silva, Paulo R. M, Martins, Juliana L, Amaral, Julio J, Monnerat, Marianne M, Cunha, Valnei S, Daroda, Romeu J, de Souza, Wanderley

“…Analytical strategies based on NMR (1H and 13C), IR (infrared), and GC (gas chromatography) techniques have been developed for the molecular level…”
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Unsaturation levels in biodiesel via easy ambient sonic-spray ionization mass spectrometry by Fernandes, Anna Maria A.P., Eberlin, Marcos N., Silva, Paulo R.M., Silva, Samantha R., Cunha, Valnei S., Daroda, Romeu J., Alberici, Rosana M.

“…•A new ambient mass spectrometry methodology able to evaluate FAME levels in biodiesel.•A fast, direct and accurate method to quantitate unsaturated FAME in…”
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Chemical Characterization of Jatropha curcas L. Seed Oil and Its Biodiesel by Ambient Desorption/Ionization Mass Spectrometry by Fernandes, Anna Maria A. P, El-Khatib, Soraya, Cunha, Ildenize B. S, Porcari, Andréia M, Eberlin, Marcos N, Silva, Marcio J, Silva, Paulo R, Cunha, Valnei S, Daroda, Romeu J, Alberici, Rosana M

“…Biodiesel has become increasingly attractive because of its environmental benefits and production from renewable resources. The use of Jatropha curcas L. oil…”
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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…”
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Biodiesel Oxidation Monitored by Ambient Desorption/Ionization Mass Spectrometry by Godoy, Adriana T, Pereira, Gustavo G, Ferreira, Lucas L, Cunha, Ildenize B. S, Barrera-Arellano, Daniel, Daroda, Romeu J, Eberlin, Marcos N, Alberici, Rosana M

“…Biodiesel is a renewable source of global interest and one of the most attractive alternatives to partially replace petroleum fuels. Because of its chemical…”
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Ambient sonic‐spray ionization mass spectrometry for rapid monitoring of secondary oxidation products in biodiesel by Pereira, Gustavo G, Alberici, Rosana M, Fernandes, Gabriel D, Cunha, Ildenize B. S, Eberlin, Marcos N, Dobarganes, M. C, Daroda, Romeu J, Barrera‐Arellano, Daniel

“…This paper proposes the use of easy ambient sonic‐spray ionization mass spectrometry (EASI‐MS) to detect markers of high‐level oxidation in biodiesel via a…”
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