[PDF] Top 20 J. Braz. Chem. Soc. vol.22 número1
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J. Braz. Chem. Soc. vol.22 número1
... Quanto ao corpo editorial, a revista continua seu procedimento de contínua renovação. O atual corpo de editores foi recentemente reformulado, com pesquisadores competentes e uma abrangência nas áreas de fronteira cada ... See full document
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J. Braz. Chem. Soc. vol.22 número1
... a Bruker Avance-500 instrument. The chemical shifts were referenced to CH 3 NO 2 at 0.00 ppm. The one-bond heteronuclear correlation (HMQC) was obtained using the inv4gpqf program in the Bruker software. The spectra ... See full document
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J. Braz. Chem. Soc. vol.22 número1
... The quality control samples were analyzed as described above in triplicate on each of 5 days. The concentrations of all analytes in the quality control samples were calculated from daily calibration curves. Within-assay ... See full document
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J. Braz. Chem. Soc. vol.22 número1
... Figure 3 shows the mean contents of manganese and zinc, variables considered more important by the neural network, in the conventional and transgenic soybean in the region of Londrina[r] ... See full document
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J. Braz. Chem. Soc. vol.22 número1
... O.; Gelman, D.; Org. Lett. 2006, 8, 1189; Li, L. H.; Pan, Z. L.; Duan, X. H.; Liang, Y. M.; Synlett 2006, 2094; Velmathi, S.; Leadbeater, N. E.; Tetrahedron Lett. 2008, 49, 4693; Chen, G.; Weng, J.; Zheng, Z.; ... See full document
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J. Braz. Chem. Soc. vol.22 número1
... Concerning the editorial board, the journal has kept its procedure of continuous renewal. The present editorial board has recently been reformulated, with competent researchers from an increasing range of border areas. ... See full document
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J. Braz. Chem. Soc. vol.22 número1
... 32. Lacerda, L.D.; Santelli, R.E.; Duursma, E.K.; Abrão, J.J., eds.; Facets of Environmental Geochemistry in Tropical and Subtropical Environments, Springer Verlag, Heidelberg, 2004. 33. Machado, W. ; Santelli, R. E.; ... See full document
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J. Braz. Chem. Soc. vol.22 número1
... 2. For examples of syntheses employing 2, see: Mitton-Fry, M. J.; Cullen A. J.; Sammakia, T.; Angew. Chem., Int. Ed. 2007, 46, 1066; McAllister, L. A.; Hixon, M. S.; Schwartz, R.; Kubitz, D. S.; ... See full document
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J. Braz. Chem. Soc. vol.22 número1
... characterized as being due to a monosubstituted aromatic ring [d 8.10 (m, 2H, H-2′ and H-6′), 7.42 (m, H-3′ and H-5′) and 7.48 (tt, 8.0, 2.0 Hz, H-4′)], and a 4-methoxyphenyl group (1,4-disubstituted aromatic ring) [d ... See full document
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J. Braz. Chem. Soc. vol.22 número1
... This paper investigates the inluence of wavelet family, length and number of resolution levels on the performance of multivariate calibration models obtained in the wavelet domain.. Twe[r] ... See full document
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J. Braz. Chem. Soc. vol.22 número1
... A). The novel aminonaphthoquinones 6a-c were puriied by lash column chromatography using 50% n-hexane/ ethyl acetate as eluent. The yields of these reactions are listed in Table 1. The reaction of D- glucosamine ... See full document
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J. Braz. Chem. Soc. vol.22 número1
... When electrolysis is performed in chloride medium, the formation of an organochlorine compound (RCl) during the treatment is very likely. This kind of material displays high lipophilicity, so interactions with enzymes ... See full document
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J. Braz. Chem. Soc. vol.22 número1
... Finally, it was possible in this work to put together information from the QM/MM MD simulation and from the characterization of the TSs as true saddle points in order[r] ... See full document
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J. Braz. Chem. Soc. vol.22 número1
... The reductive degradation of four prototype dyes largely employed by the food industry (Brilliant Blue, Amaranth, Sunset Yellow and Red 40), by zero-valent metals (Fe and Sn[r] ... See full document
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J. Braz. Chem. Soc. vol.22 número1
... Extracts were analyzed (1 µL of extract) by coupled gas chromatography-mass spectrometry (GC-MS) using a Shimadzu QP-5050A GC-MS operated in the electron impact ionization mode (70 eV), and equipped with a DB-5 capillary ... See full document
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J. Braz. Chem. Soc. vol.22 número1
... this work, a disposable amperometric immunosensor was developed by using a screen printed carbon electrode modiied with ferrocenedicarboxylic acid and AuNPs which lead to incre[r] ... See full document
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J. Braz. Chem. Soc. vol.22 número1
... Different factors inluencing the extraction eficiency of cobalt and manganese ions, such as type and volume of the extraction solvent, pH, extraction time, extraction temperature, and [r] ... See full document
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J. Braz. Chem. Soc. vol.22 número1
... Brazil has a high potential for lignocellulosic iber production. As an example, this type of material results from babassu (Orbignya speciosa) biomass, a very abundant palm tree in the north-central region of the ... See full document
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J. Braz. Chem. Soc. vol.22 número1
... Table 4 lists the linear range, detection limit, slope, response time and selectivity coeficients of some of other salicylate-selective electrodes against proposed salicylate- [r] ... See full document
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J. Braz. Chem. Soc. vol.22 número1
... Quantitative Determination of Some Water-Soluble B Vitamins by Kinetic Analytical Method Based on the Perturbation of an Oscillatory Reaction.. Jelena P.[r] ... See full document
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