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J. Braz. Chem. Soc. vol.16 número1 en a01v16n1
... of Prof. Raimundo Braz Filho, highlighting his contributions to Brazilian Chemistry. Due to the increase in the number of submissions and in order to prevent special issues from obstructing the flow of regular ... See full document
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J. Braz. Chem. Soc. vol.16 número2 en a12v16n2
... The macrostructural features of the starting carbon determined the resulting SiC morphology (e.g. grains, extrudates, spheres, monoliths) leading to the shape memory concept. The SMS method also allowed the preparation ... See full document
8
J. Braz. Chem. Soc. vol.16 número2 en a05v16n2
... extract from leaves of Piper malacophyllum was selected for bioactivity-guided phytochemical investigation due to the strong activity observed against Cladosporium cladosporioides an[r] ... See full document
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J. Braz. Chem. Soc. vol.16 número2 en a07v16n2
... Two matrices were done to study effects of bulk and surface chemical composition on mechanical properties of unrefined and refined samples, respectively. In the first matrix, TrID, TsID, BuID, BeID, EM, DP, SLig, SExt, ... See full document
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J. Braz. Chem. Soc. vol.16 número2 en a09v16n2
... 11. Kwiatkowski, E.; Kwiatkowski, M.; Olechnowicz, A.; Inorg. Chim. Acta 1984, 90, 145; Kwiatkowski, E.; Kwiatkowski, M.; Inorg. Chim. Acta 1984, 82, 101; Casella, L.; Gullotti, M.; J. Chem. Soc., ... See full document
11
J. Braz. Chem. Soc. vol.16 número2 en a10v16n2
... Similar analysis can be done for vibrational frequencies: the data in Table 1b shows that the values obtained using the triple zeta basis sets show smaller dependence on the inclusion of[r] ... See full document
7
J. Braz. Chem. Soc. vol.16 número2 en a11v16n2
... The proposed method has been successfully applied to the determination of trace amounts of chromium in alloy steels ,industrial effluents, natural water samples and soil samples. Acknowl[r] ... See full document
5
J. Braz. Chem. Soc. vol.16 número2 en a13v16n2
... showed 7 methylene carbons (DEPT), instead of 8 of the parent compound, as well as extra methine group signal.. The signal corresponding to C-11 in the substrate, a methylene at 20.21 pp[r] ... See full document
4
J. Braz. Chem. Soc. vol.16 número2 en a03v16n2
... The gas chromatographic (GC) analyses were carried out on a Hewlett-Packard 5890 series II gas chromato- graphy equipped with a flame ionization detector. Injection of samples was performed at the split mode using a ... See full document
8
J. Braz. Chem. Soc. vol.16 número2 en a14v16n2
... The BrMA always increases, no matter which model we use and in agree with the hypothesis of a crucial BrMA concentration at the end of the induction period, but the rate of the increase [r] ... See full document
6
J. Braz. Chem. Soc. vol.16 número2 en a15v16n2
... In Figure 2 is presented the electropherograms obtained from the calf blood DNA (Figure 2a), used as a control blank sample, and the same blank spiked with dGMP-BPDE standard to a final [r] ... See full document
7
J. Braz. Chem. Soc. vol.16 número2 en a16v16n2
... The relative importance of cavity formation and dispersion-repulsion contributions to the activation free energy of chemical reactions in liquid phase is discussed, taken as example the [r] ... See full document
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J. Braz. Chem. Soc. vol.16 número2 en a17v16n2
... of all the dyes used was checked by TLC. Sodium n-dodecylsulfate (Sigma, 98-99%) was used as such; N-cetylpyridinium chloride was purified through re-crystallization. The weighted amounts of dyes 1, 11, and 12 were ... See full document
9
J. Braz. Chem. Soc. vol.16 número2 en a18v16n2
... The nitrite concentrations in the water samples examined in this work were also below the maximum limit value established by the Brazilian Environmental Standards. However, the low conce[r] ... See full document
10
J. Braz. Chem. Soc. vol.16 número2 en a19v16n2
... On the other hand, the mechanism for orthorhombic mullite formation from the precursors with the Al:Si molar ratio of 3:1 (stoichiometric composition of mullite) must be related to alumi[r] ... See full document
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J. Braz. Chem. Soc. vol.16 número2 en a20v16n2
... The nucleophilic addition of arylsulphinic acids to oxidized polyaniline is shown to be controlled by the oxidation and/or protonation state of the polymer.. It is also possible to N-nit[r] ... See full document
11
J. Braz. Chem. Soc. vol.16 número2 en a21v16n2
... 27. Wallace, L. A.; Crit. Rev. Environ. Sci. Technol. 1997, 27, 113. 28. Mak, F. T.; Cooper, W. J.; Kurucz, C. N.; Nickelsen, M. G.; Waite, T. D. In Disinfection By-Products in Water Treatment; Minear; R. A.; Amy, ... See full document
5
J. Braz. Chem. Soc. vol.16 número2 en a04v16n2
... The diamine is bonded to the cellulose acetate /Al 2 O 3 surface by Al–O–Si covalent bonds and thus, the material obtained is chemically very stable and shows high adsorption capacity i[r] ... See full document
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J. Braz. Chem. Soc. vol.16 número2 en a02v16n2
... The microstructure and surface composition effects on the transpassivation behavior of untreated and heat treated at 500 ºC NiTi wires used for implant purposes were investigated by elec[r] ... See full document
8
J. Braz. Chem. Soc. vol.16 número1
... Neste ano publicaremos dois números especiais. O primeiro deles será composto por contribuições de autores brasileiros e mexicanos e será preparado conjuntamente pelos editores do JBCS e da Revista Mexicana de Química, ... See full document
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