[PDF] Top 20 J. Braz. Chem. Soc. vol.18 número4
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J. Braz. Chem. Soc. vol.18 número4
... e outro da Environmental Science and Technology - acompanharam toda a programação, mantendo um blog com notícias diárias: cenbrazil.wordpress.com. Logo após o encerramento do workshop, um resumo das atividades foi ... See full document
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J. Braz. Chem. Soc. vol.18 número4
... 8. Shrotriya , V; Li ,G.; Huang, J.; Yao, Y.; Moriarty, T.; Emery, K.; Yang, Y.; Nature 2005, 4, 864 ; Ma, W.; Yang, C.; Gong, X.; Lee, K.; Heeger, A.; Adv. Funct. Mater. 2005, 15, 1617; Reyes, M.R.; Kim, K.; ... See full document
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J. Braz. Chem. Soc. vol.18 número4
... Oven dried (50 °C) sediment samples (~25 grams) were spiked with internal standards: C 18:1 for the aliphatic hydrocarbon fraction, and 9,10-dihydroanthracene for the aromatic hydrocarbon fraction. The samples ... See full document
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J. Braz. Chem. Soc. vol.18 número4
... In order to test the performance of the membrane characteristics, various operation parameters, such as, selectivity, response time, sensitivity, lifetime, working range of the electrode[r] ... See full document
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J. Braz. Chem. Soc. vol.18 número4
... The voltammetric peaks obtained at –0.78 V, –1.35 V, and –1.70 V for amfepramone in acidic and alkaline medium are characterized by irreversible reduction processes, which have a contrib[r] ... See full document
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J. Braz. Chem. Soc. vol.18 número4
... Simultaneous Differential Pulse Voltammetric Determination of L-Dopa and Carbidopa in Pharmaceuticals Using a Carbon Paste Electrode Modified with Lead Dioxidea. Immobilized in a Polyest[r] ... See full document
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J. Braz. Chem. Soc. vol.18 número4
... Since the enantioselective complexes which could not be stripped at once, formed by chiral carrier with two enantiomer, only could be stripped by means of diffusing through the boundary [r] ... See full document
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J. Braz. Chem. Soc. vol.18 número4
... activities were released by the ACS publications such as Chemical and Engineering News and the Environmental Science and Technology which sent two journalists to Brazil to cover an extensive program. Through the blog ... See full document
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J. Braz. Chem. Soc. vol.18 número4
... The complexation capacity of humic substances extracted from peat samples taken from the Mogi River in Ribeirao Preto, SP, Brazil, was determined using metal ions (Al(III), Pb(II), Cr(VI[r] ... See full document
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J. Braz. Chem. Soc. vol.18 número4
... A.; J. Phys. Chem. A 2003, 107, 4184) have shown that, if calculated LUMO energies are negative, as in our case, there are satisfactory linear correlation relationships between the (B3LYP) calculated HOMO ... See full document
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J. Braz. Chem. Soc. vol.18 número4
... The EDTA extraction method adopted by BCR was sufficiently accurate and reproducible in the extracts of a sludge amended soil for the elements Cd, Cu, Ni, Pb and Zn; (iii) Correlation between plant and soil. In general, ... See full document
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J. Braz. Chem. Soc. vol.18 número4
... Aerosol sampling was performed at ten sites distributed in different location of Rio de Janeiro city, from September/2003 to Sepetember/2004, on a weekly basis with 24 h sampling time interval. PM 2.5 and PM 2.5-10 ... See full document
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J. Braz. Chem. Soc. vol.18 número4
... The proposed method is based on the reflectance measurements in the visible region of the spectrum ( λ max = 510 nm) produced from the spot test reaction between dipyrone and p -dimethy[r] ... See full document
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J. Braz. Chem. Soc. vol.18 número4
... or on a Bruker Spectrospin-400 (400 MHz) spectrometer, using CDCl 3 or CD 3 OD as the solvent and TMS as internal standard. Coupling constants (J) are reported in Hertz (Hz) and multiplicities are indicated as s ... See full document
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J. Braz. Chem. Soc. vol.18 número4
... The C/H, C/N and C/O atomic ratio parameters, functional groups, concentration of semiquinone-type free radicals, pH, pluviometric and fluviometric indices, and mercury concentrations we[r] ... See full document
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J. Braz. Chem. Soc. vol.18 número4
... MMT, O-MMT, MMT/PDMS-OH and O-MMT/ PDMS-OH produced an isotropic scattering pattern (Figure 2(a), 2(e), 2(b) and 2(f), respectively). On the other hand, a shear induced morphology with a ring in the center and oriented ... See full document
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J. Braz. Chem. Soc. vol.18 número4
... The anodic peak current increased with the amount of organofunctionalised SBA-15 silica in the paste up to 15% (m/m), decreasing significantly when more modified silica is used in the el[r] ... See full document
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J. Braz. Chem. Soc. vol.18 número4
... 27. Frisch, M. J.; Trucks, G. W.; Schlegel, H. B.; Scuseria, G. E.; Robb, M. A.; Cheeseman, J. R.; Zakrzewski, V. G.; Montgomery Jr., J. A.; Stratmann, R. E.; Burant, J. C.; Dapprich, S.; ... See full document
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J. Braz. Chem. Soc. vol.18 número4
... Therefore, core 1 is mostly distinguished from the others by showing a higher metal average concentration (except Mn), associated with a higher anthropic contribution, while the principa[r] ... See full document
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J. Braz. Chem. Soc. vol.18 número4
... 7. Recent examples: Chaudhuri, S.K.; Roy, S.; Saha M.; Bhar, S.; Synth. Commun. 2007, 37, 271; Koshy, E.P.; Zacharias, J.; Pillai, V.N.R.; React. Func. Polym. 2006, 66, 845; Kavala, V.; Naik, S.; Patel, B.K.; ... See full document
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