[PDF] Top 20 J. Braz. Chem. Soc. vol.23 número7
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J. Braz. Chem. Soc. vol.23 número7
... The two major funding agencies for scientific research: the National Council for Technological and Scientific Development (CNPq) and the Brazilian Federal Agency for Support and Eval[r] ... See full document
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J. Braz. Chem. Soc. vol.23 número7
... identified through the volatilization of the lighter molecules, the second region (460-570 °C) can be attributed to the mesogenic molecules with a degree of polymerization and planar spatial π-π arrangement, and the ... See full document
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J. Braz. Chem. Soc. vol.23 número7
... 14. Becke, A. D.; Phys. Rev. A 1988, 38, 3098; Lee, C.; Yang, W.; Parr, R. G.; Phys. Rev. B: Condens. Matter Mater. Phys. 1988, 37, 785; Miehlich, B.; Savin, A.; Stoll, H.; Preuss, H.; Chem. Phys. Lett. 1989, ... See full document
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J. Braz. Chem. Soc. vol.23 número7
... for resolving overlapped spectral systems, but when the correlation of components increases, the error of predicted results will increase. Also these methods use an abstract mathematical content which it is not easy to ... See full document
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J. Braz. Chem. Soc. vol.23 número7
... On Site Stripping Voltammetric Determination of Zn(II), Cd(II) and Pb(II) in Water Samples of the Cananéia-Iguape Estuarine-Lagoon Complex in São Paulo State, Brazil.. Ana P.[r] ... See full document
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J. Braz. Chem. Soc. vol.23 número7
... Dispersive liquid-liquid microextraction (DLLME) using ionic liquid (IL) as extraction solvent was developed as a new approach for the determination of four pyrethroid pesticides in en[r] ... See full document
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J. Braz. Chem. Soc. vol.23 número7
... Rega, N.; Petersson, G. A.; Nakatsuji, H.; Hada, M.; Ehara, M.; Toyota, K.; Fukuda, R.; Hasegawa, J.; Ishida, M.; Nakajima, T.; Honda, Y.; Kitao, O.; Nakai, H.; Klene, M.; Li, X.; Knox, J. E.; Hratchian, H. ... See full document
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J. Braz. Chem. Soc. vol.23 número7
... Roasted and ground 38 commercial coffees and coffees of known species (arabica, robusta) were characterized by principal component analysis using as variables nicotinic acid, trigonelli[r] ... See full document
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J. Braz. Chem. Soc. vol.23 número7
... 30,31 After we failed to obtain a recyclable multi-phase system anchoring the tin complex to an ionic liquid or to an organic solid phase that could keep the same catalytic activity [r] ... See full document
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J. Braz. Chem. Soc. vol.23 número7
... In relation to the formation of aromatic hydrocarbons, then, it can be stated that all the three initial routes could contribute to them (refer to Figure 7), although the most direct [r] ... See full document
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J. Braz. Chem. Soc. vol.23 número7
... The regions comprise intensively impacted sites located at the Fildes Peninsula, Maritime Antarctica, around five research stations: Chileans (Escudero and Eduardo Frei Montalva), Chi[r] ... See full document
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J. Braz. Chem. Soc. vol.23 número7
... A. L. M. Porto gratefully acknowledges Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) and Fundação de Amparo a Pesquisa do Estado de São Paulo (FAPESP) for their financial support. J. R. ... See full document
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J. Braz. Chem. Soc. vol.23 número7
... In this way, the sensitivity response in biodiesel samples of different sources showed no statistical difference, and external calibration could be performed by the adequate dilution [r] ... See full document
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J. Braz. Chem. Soc. vol.23 número7 pt v23n7a01
... Uma andorinha só não faz verão, mas a Sociedade Brasileira de Química e seus associados podem revolucionar a química no Ensino Médio e mudar o Brasil para melhor. Pinto[r] ... See full document
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J. Braz. Chem. Soc. vol.23 número7
... In the initial stages of the Fenton reaction, the presence of zinc ions exerted a beneficial effect on the phenol degradation since it enhances the persistence of catechol, probably v[r] ... See full document
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J. Braz. Chem. Soc. vol.23 número7
... The most relevant findings of this paper were that sample C1 ( i ) possess antinociceptive activity revealed by writhing test; ( ii ) is more effective on the first phase (neurogenic [r] ... See full document
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J. Braz. Chem. Soc. vol.23 número7
... This confirms that Mn-doping eases the polarization of the active materials under high current density, and the electrode kinetics of the cathode material. is thus improved[r] ... See full document
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J. Braz. Chem. Soc. vol.23 número7
... Both the natural and activated clays promoted the esterification of phenylacetic acid with methanol more efficiently than those of other carboxylic acids. This result may be associate[r] ... See full document
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J. Braz. Chem. Soc. vol.23 número7
... that the nitrated oximes 17 and 18 are also effective, with a reactivation capacity of 62 and 58%, respectively. This indicates that electron withdrawing groups could increase the reactivation capacity of the aromatic ... See full document
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J. Braz. Chem. Soc. vol.23 número7
... spectrometry (GC-MS). Qualitative analyses were conducted with a Shimadzu (Kyoto, Japan) gas chromatograph-mass spectrometer (QP 5000 and Classs-5000 software, version 1.2) with an auto sampler and workstation. A fused ... See full document
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