[PDF] Top 20 J. Braz. Chem. Soc. vol.24 número1
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J. Braz. Chem. Soc. vol.24 número1
... We certainly agree that “the consolidation of the JBCS is a result of the efforts, dedication and commitment of its ex-editors, of its current editors and associate editors, of its au[r] ... See full document
2
J. Braz. Chem. Soc. vol.24 número1
... sample extraction was optimized using factorial design of experiments and the method was then used for the analysis of commercial samples of sage.. Experimental.[r] ... See full document
7
J. Braz. Chem. Soc. vol.24 número1 pt a01v24n1
... Comparando-se com os dados do período 1997-2010, houve um aumento significativo no número de artigos publicados na área de Química Analítica no biênio 2011- 2012, enquanto que o número[r] ... See full document
2
J. Braz. Chem. Soc. vol.24 número1
... In summary, we have presented an elegant, simple and transition metal-free methodology for substrate selective oxidation of alcohols, catalyzed by Fe 3 O 4 /SiO 2 /CM− β -CD with chea[r] ... See full document
6
J. Braz. Chem. Soc. vol.24 número1
... The performance of the proposed device is discussed for the determination of bicarbonate ions in mineral waters and for the determination of ammonium ions in medicinal tablets used to[r] ... See full document
7
J. Braz. Chem. Soc. vol.24 número1
... The human myeloid leukemia cancer cell lines used in this report included the HL-60 (promyelogenous leukemia), K562 (chronic myelogenous leukemia), MOLT-4 (acute lymphoblastic leukemia) and Jurkat (T-cell lymphoblast ... See full document
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J. Braz. Chem. Soc. vol.24 número1
... 23. Frisch, M. J.; Trucks, G. W.; Schlegel, H. B.; Scuseria, G. E.; Robb, M. A.; Cheeseman, J. R.; Scalmani, G.; Barone, V.; Mennucci, B.; Petersson, G. A.; Nakatsuji, H.; Caricato, M.; Li, X.; Hratchian, ... See full document
12
J. Braz. Chem. Soc. vol.24 número1
... obtained as optimum in studies on the effect of adsorbent doses). The pH value of the sample was adjusted in the range of 2 to 12 with diluted solutions of HCl and NaOH. A portable digital pH meter (WTW brand, model ... See full document
12
J. Braz. Chem. Soc. vol.24 número1
... first row of the plate, the highest concentration, and in the latter, the lower concentrations. Finally, 10 µL of inoculum were added to the wells where each column of the plate referred specifically to a strain. The ... See full document
6
J. Braz. Chem. Soc. vol.24 número1
... Coprecipitation methods using Al(III) and Fe(III) as carrier elements and chromotrope 2B as coprecipitative reagent were described for the preconcentration of Cr(III), Pb(II), Zn(II), C[r] ... See full document
10
J. Braz. Chem. Soc. vol.24 número1
... The catalysts were prepared from a commercial ammonium-exchanged zeolite Beta (Zeolyst). Vanadium impregnation was carried out by wet impregnation. An aqueous solution of ammonium metavanadate was stirred at room ... See full document
6
J. Braz. Chem. Soc. vol.24 número1
... Melting points were determined on a Fisher-Johns melting point apparatus and are uncorrected. Optical rotations were determined on a Perkin-Elmer 343 polarimeter. Circular dichroism was obtained on a Jasco J-720 ... See full document
8
J. Braz. Chem. Soc. vol.24 número1
... In this work, essential oils of leaf and branch from Drimys angustifolia growing in Southern Brazil were obtained by hydrodistillation and analyzed by gas chromatographies with flame[r] ... See full document
7
J. Braz. Chem. Soc. vol.24 número1
... Based on the experimental results obtained, it is possible to conclude that experimental design and response surface methodology are powerful tools to optimize, in a short set of expe[r] ... See full document
9
J. Braz. Chem. Soc. vol.24 número1
... On the basis of the results obtained, it is possible to conclude that photodegradation behaviors can occur in pyrazosulfuron-ethyl, depending on the pH values of aqueous solution and [r] ... See full document
6
J. Braz. Chem. Soc. vol.24 número1
... 13. Hori, C. E.; Permana, H.; Simon, K. Y.; Brenner, A.; More, K.; Rahmoeller, M.; Belton, D.; Appl. Catal., B 1998, 16, 105. 14. Passos, F. B.; Frety, R.; Schmal, M.; Catal. Lett. 1992, 14, 57. 15. Roh, H. S.; Jun, K. ... See full document
8
J. Braz. Chem. Soc. vol.24 número1
... 12. Ferreira, V. F.; Jorqueira, A.; Souza, A. M. T.; da Silva, M. N.; de Souza, M. C. B. V.; Gouvêa, R. M.; Rodrigues, C. R.; Pinto, A. V.; Castro, H. C.; Santos, D. O.; Araújo, H. P.; Bourguignon, S. C.; Bioorg. Med. ... See full document
5
J. Braz. Chem. Soc. vol.24 número1
... We wish to report here our detailed results about the production of acetins via the transesterification reaction of ethyl acetate with glycerol using sulfuric acid (H 2 SO 4 ), p -[r] ... See full document
9
J. Braz. Chem. Soc. vol.24 número1
... The electrooxidation of cysteamine (CA) was studied by modified carbon nanotubes paste electrode in the presence of 3,4-dihydroxycinnamic acid (3,4-DHCA) using cyclic voltammetry, chro[r] ... See full document
8
J. Braz. Chem. Soc. vol.24 número1
... Linear fitting of the data for adsorption of thiophene using the pseudo-second order kinetic model at different temperatures. Figure 4[r] ... See full document
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