Search Results - "Aquino Neto, F. R."

Comprehensive analysis by liquid chromatography Q‐Orbitrap mass spectrometry: Fast screening of peptides and organic molecules by Sardela, V. F., Martucci, M. E. P., Araújo, A. L. D., Leal, E. C., Oliveira, D. S., Carneiro, G. R. A., Deventer, K., Van Eenoo, P., Pereira, H. M. G., Aquino Neto, F. R.

“…The number of substances nominally listed in the prohibited list of the World Anti‐Doping Agency increases each year. Moreover, many of these substances do not…”
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Analysis of sibutramine metabolites as N-trifluoroacetamide and O-trimethylsilyl derivatives by gas chromatography–mass spectrometry in urine by Sardela, V.F., Motta, M.T.R., Padilha, M.C., Pereira, H.M.G., Neto, F.R. Aquino

“…A method for identifying the metabolites of sibutramine 1-(4(chlorophenyl)-N,N-dimethyl-α-(2-methylpropyl))cyclobutanemethanamine) in urine, utilizing a double…”
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Uric acid changes in urine and plasma: An effective tool in screening for purine inborn errors of metabolism and other pathological conditions by Simoni, R. E, Ferreira Gomes, L. N. L, Scalco, F. B, Oliveira, C. P. H, Aquino Neto, F. R, Costa de Oliveira, M. L

“…Purine inborn errors of metabolism (IEM) are serious hereditary disorders, which should be suspected in any case of neonatal fitting, failure to thrive,…”
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Analysis of phytoestrogens, progestogens and estrogens in environmental waters from Rio de Janeiro (Brazil) by Kuster, M., Azevedo, D.A., López de Alda, M.J., Aquino Neto, F.R., Barceló, D.

“…The environment is currently exposed to a large variety of man-made chemicals (e.g. for industrial, medicinal use) which have potential adverse effects to its…”
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Development and validation of a ultra high performance liquid chromatography–tandem mass spectrometric method for the direct detection of formoterol in human urine by Sardela, V.F., Deventer, K., Pereira, H.M.G., de Aquino Neto, F.R., Van Eenoo, P.

“…Formoterol is a long acting β2-agonist and has proven to be a very effective bronchodilating agent. Hence it is frequently applied therapeutically for the…”
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Analytical challenges in doping control: Comprehensive two-dimensional gas chromatography with time of flight mass spectrometry, a promising option by Silva, A.I., Pereira, H.M.G., Casilli, A., Conceição, F.C., Aquino Neto, F.R.

“…Doping control screening based on the enhanced resolution of comprehensive two-dimensional (2D) gas chromatography hyphenated to time of flight mass…”
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Consequences of the formation of 3,4-dimethyl-5-phenyl-1,3-oxazolidine on the analysis of ephedrines in urine by gas chromatography and a new method for confirmation as N-trifluoroacetyl-O-t-butyldimethylsilyl ether derivatives by Sardela, V.F., Sardela, P.D.O., Pereira, H.M.G., Aquino Neto, F.R.

“…The compound 3,4-dimethyl-5-phenyl-1,3-oxazolidine can appear as an artifact during the gas chromatographic analysis of ephedrines. Its presence is a risk for…”
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Rapid Screening of Polar Compounds in Brazilian Propolis by High-Temperature High-Resolution Gas Chromatography−Mass Spectrometry by Pereira, A. S, Norsell, M, Cardoso, J. N, Aquino Neto, F. R, Ramos, M. F. S

“…Methanol extracts of propolis from six different places, five in Rio de Janeiro state and one in São Paulo state, both in the Southeast of Brazil, were…”
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Application of High-Temperature Gas Chromatography−Mass Spectrometry to the Investigation of Glycosidically Bound Components Related to Cashew Apple (Anacardium occidentale L. Var. nanum) Volatiles by Bicalho, B, Pereira, A. S, Aquino Neto, F. R, Pinto, A. C, Rezende, C. M

“…Free and bound volatile components of a Brazilian cashew apple variety (Anacardium occidentale L. var. nanum) were obtained by simultaneous…”
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Chemical composition and microbicidal activity of extracts from Brazilian and Bulgarian propolis by Salomao, K, Dantas, A.P, Borba, C.M, Campos, L.C, Machado, D.G, Aquino Neto, F.R, Castro, S.L. de

“…Aims:  The chemical composition of ethanol extracts from a Brazilian (Et‐Bra) and a Bulgarian (Et‐Blg) propolis, and their activity against the protozoan…”
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Asthma and Rhinitis in Office Buildings Workers and Exposure to Total Volatile Organic Compounds (TVOC) and Formaldehyde by Rios, J.L.M, Boechat, J.L, Ramos, M.C.K, Luiz, R.R, Neto, F. R. Aquino, Lapa e Silva, J.R

“…The aim of this study was to investigate the association between asthma and rhinitis in office workers, and exposition to TVOC and formaldehyde concentrations…”
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Composition of green coffee water-soluble fractions and identification of volatiles formed during roasting by De Maria, C.A.B, Trugo, L.C, Neto, F.R.Aquino, Moreira, R.F.A, Alviano, C.S

“…Flavour precursors from water-soluble green coffee low molecular weight (B) and high molecular weight (C) fractions were investigated and the volatiles formed…”
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Exposure to High Levels of Volatile Organic Compounds and Other Pollutants in a Printing Facility in Rio de Janeiro, Brazil by Gioda, Adriana, de Aquino Neto, Francisco Radler

“…Industrial environments often contain potential sources of volatile organic compounds (VOCs). Many such compounds are extremely toxic and can be harmful to…”
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Analysis and Quantitation of Rotenoids and Flavonoids in Derris (Lonchocarpus urucu) by High-Temperature High-Resolution Gas Chromatography by dos Santos Pereira, Alberto, Serrano, Maria Angelis Afonso, de Aquino Neto, Francisco Radler, da Cunha Pinto, Angelo, Texeira, Dulcineia Furtado, Gilbert, Benjamin

“…A glass capillary column coated with PS-086 (15% phenyl-80% methylpolysiloxane, 15 m × 0.30-mm i.d., 0.1-µm film thickness) is used to analyze extracts from…”
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Rapid Screening of Natural Products by High-Resolution High-Temperature Gas Chromatography by Carbonell, Silvia Albero, de Aquino Neto, Francisco Radler, Cardoso, Jari Nobrega, dos Santos Pereira, Alberto, Amaral, Ana Claudia F., Barnes, Roderick A.

“…The crude ethanol extracts from the leaves of three Croton hemiargyrus hemiargyreus plants are fractionated by thin-layer chromatography, yielding five…”
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Performance of Capillary Columns for High-Temperature Gas Chromatography by dos Santos Pereira, Alberto, de Aquino Neto, Francisco Radler

“…The developments in stationary-phase synthesis and capillary column technology have opened new perspectives in the analysis of high-molecular-weight compounds…”
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Is zebrafish (Danio rerio) a tool for human‐like metabolism study? by Souza Anselmo, Carina, Sardela, Vinicius Figueiredo, Matias, Bernardo Fonseca, Carvalho, Amanda Reis, Sousa, Valeria Pereira, Pereira, Henrique Marcelo Gualberto, Aquino Neto, Francisco Radler

“…One of the greatest challenges in anti‐doping science is the large number of substances available and the difficulty in finding the best analytical targets to…”
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Improvement of enantioselective syntheses and chiral high resolution gas chromatographic analyses of (+)-2-allyl-2-carboethoxy-cyclopentanol by Fraga, Carlos A. M., Barreiro, Eliezer J., da Silva, Edson F., dos Santos, Anderson R., Ramos, Maria da Conceição K. V., de Aquino Neto, Francisco R.

“…The improvement of the biocatalytic reduction of 2‐allyl‐carboethoxy‐cyclopentanone (2) to the corresponding cyclopentanol derivative (+)‐(1R,2R)‐(1) was…”
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Analytical and logistical improvements in doping-control analysis at the 2007 Pan-American Games by Pereira, H.M.G., Padilha, M.C., Bento, R.M.A., Cunha, T.P., Lascas, N.A.G., Neto, F.R. Aquino

“…We summarize the logistical approach and the results obtained from doping-control analysis during the period of the XV Pan-American Games, 13–31 July 2007. All…”
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Atmospheric distribution of organic compounds from urban areas near a coal-fired power station by Moreira dos Santos, Celeste Yara, de Almeida Azevedo, Débora, de Aquino Neto, Francisco Radler

“…Atmospheric particulate matter and volatile organic compounds (VOCs) from three sites surrounding a thermoelectric complex, VOCs from the power plant stack gas…”
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