[PDF] Top 20 J. Braz. Chem. Soc. vol.23 número1
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J. Braz. Chem. Soc. vol.23 número1
... No âmbito interno, a expansão do corpo editorial para incluir os (atuais) 12 editores associados, e do corpo gerencial e de processamento, que atualmente é integrado por sete membros[r] ... See full document
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J. Braz. Chem. Soc. vol.23 número1
... coupling constants J are reported in Hz. The following abbreviations are used for the multiplicities: s (singlet), d (doublet), dd (double of doublets), t (triplet), q (quartet), m (multiplet) and br s (broad ... See full document
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J. Braz. Chem. Soc. vol.23 número1
... In this paper, we propose the use of oxalic acid- impregnated cellulose filters to collect gaseous ammonia, with analysis using fluorescence based on chemical reaction of ammonia with [r] ... See full document
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J. Braz. Chem. Soc. vol.23 número1
... All accuracy values fulfilled the acceptance criteria for this parameter, lying within the range 96.3-99.8% of the nominal concentrations for plasma and 99.3-103.4% for oral fluid sam[r] ... See full document
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J. Braz. Chem. Soc. vol.23 número1
... This research was supported by a grant (No. 03/02176-7) awarded to V. S. B. from Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) as part of the Biodiversity Virtual Institute Program (www.biota.org.br). A. ... See full document
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J. Braz. Chem. Soc. vol.23 número1
... However, in comparison with simple ketones, the formation of enamine intermediates with primary or secondary amine catalysts and inactive unmodified ynones remains a great challenge. Based on the fact that DABCO can ... See full document
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J. Braz. Chem. Soc. vol.23 número1
... Wistar male rats were obtained from the Animal Facility for Maintenance of Animals for Experimentation of the Federal University of Piauí (UFPI). All animals were previously adapted to laboratory conditions for 14 days ... See full document
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J. Braz. Chem. Soc. vol.23 número1
... All compounds were tested for allelopathic activity on lettuce ( Lactuca sativa L) seeds.. Cytosporone A and its methylated precursor showed remarkable allelopathic activity, inhibiti[r] ... See full document
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J. Braz. Chem. Soc. vol.23 número1
... 3. Cody, G. D.; Boctor, N. Z.; Filley, T. R.; Hazen, R. M.; Scott, J. H.; Sharma, A.; Yoder, H. S. Jr.; Science 2000, 289, 1337; Koutsantonis, G. A. In Concepts and Models in Bioinorganic Chemistry; ... See full document
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J. Braz. Chem. Soc. vol.23 número1 en a01v23n1
... In addition, by keeping our commitment to the open-access model, which enhances JBCS international visibility and impact, and counting only on the voluntary financial contributions f[r] ... See full document
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J. Braz. Chem. Soc. vol.23 número1
... Key parameters affecting headspace SPME efficiency of trace PCBs in aqueous solutions were thoroughly evaluated, such as extraction fiber, extraction temperature, extraction solution[r] ... See full document
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J. Braz. Chem. Soc. vol.23 número1
... Our group reported a new procedure for the activation of copper surfaces using a potential protocol based on copper oxidation and subsequent reduction of generated copper ions.. 9,10 [r] ... See full document
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J. Braz. Chem. Soc. vol.23 número1
... Based on the catalysis results for the esterification of lauric acid to methyl laurate obtained for each catalyst, and the observed structure reconstruction or transformation of the c[r] ... See full document
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J. Braz. Chem. Soc. vol.23 número1
... The developed electroanalytical procedure was applied to natural water samples, without any previous extraction or clean-up steps that could hinder direct determination, collected at [r] ... See full document
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J. Braz. Chem. Soc. vol.23 número1
... A novel nanobiosensor based on magnetic nanoparticles can be utilized for rapid screens of telomerase activity in biological samples. In detection and monitoring of diabetes, traditio[r] ... See full document
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J. Braz. Chem. Soc. vol.23 número1
... Despite of the great attention of ESIPT-exhibiting dyes and the versatile applications of cyanuric chloride in organic synthesis as starting material to produce dyes, herbicides, poly[r] ... See full document
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J. Braz. Chem. Soc. vol.23 número1
... 5. Behrens, P.; Assmann, S.; Bilow, U.; Linke, C.; Jansen, M.; Z. Anorg. Allg. Chem. 1999, 625, 111; Behrens, P.; Solid State Commun. 1992, 81, 235; Naftel, S. J.; Bzowski, A.; Sham, T. K.; J. ... See full document
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J. Braz. Chem. Soc. vol.23 número1
... have low volatility, so these standards were derivatized with Grignard reagent, following a derivatization method for TBT analysis in sediment samples by GC-PFPD, as reported in other[r] ... See full document
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J. Braz. Chem. Soc. vol.23 número1
... The authors thank to Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) and Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro ... See full document
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J. Braz. Chem. Soc. vol.23 número1
... Although the sensitivity of the method was reduced due to adsorption of plasma endogenous compounds onto the SPME phase (matrix effect), the polythiophene phase presented selectivity [r] ... See full document
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