[PDF] Top 20 J. Braz. Chem. Soc. vol.27 número1
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J. Braz. Chem. Soc. vol.27 número1
... On one hand, the JBCS most important figures remain safely constant: our manuscript processing time remains as low as ever, around 3 months, on average, between submission and on-line[r] ... See full document
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J. Braz. Chem. Soc. vol.27 número1
... The selectivity of developed SPE method for extraction and determination of chromium was demonstrated by studying the possibility of the effect of common interfering ions usually pres[r] ... See full document
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J. Braz. Chem. Soc. vol.27 número1
... 26. 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
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J. Braz. Chem. Soc. vol.27 número1
... (gCOSY), J-resolved, gradient-selected heteronuclear multiple quantum coherence (gHMQC), gradient-selected heteronuclear multiple bond coherence (gHMBC) and nuclear Overhauser effect spectroscopy (NOESY) ... See full document
8
J. Braz. Chem. Soc. vol.27 número1
... Structural modification of pharmacologically active compounds is of interest since the introduction of other pharmacophoric groups in the right position of these compounds can generate a new class of molecules with ... See full document
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J. Braz. Chem. Soc. vol.27 número1
... Based on these results, we selected 10 sampling cycles for folic acid and hexacyanoferrate(III) solutions and 12 inserting cycles for luminol and carrier solutions (St 1 , St 2 , Figu[r] ... See full document
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J. Braz. Chem. Soc. vol.27 número1
... Twenty functional monomers were evaluated through semi-empirical quantum chemistry method and three MIPs were synthesized using the monomers acrylamide (M5), acrylic acid (M4) and 1-vi[r] ... See full document
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J. Braz. Chem. Soc. vol.27 número1
... standard. Chemical shifts (d) are reported in ppm and the coupling constants (J) are expressed in Hertz (Hz). Melting points were determined with a MQAPF-301 apparatus and are uncorrected. Electrospray ionization ... See full document
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J. Braz. Chem. Soc. vol.27 número1
... Therefore, the changes observed at 200-260 nm indicates a conformational change in the secondary structures of BSA while in the presence of rhenium compounds. On the other hand, the s[r] ... See full document
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J. Braz. Chem. Soc. vol.27 número1
... For this, matrix-matched calibration was employed along with the extraction and clean-up of the samples by quick, easy, cheap, effective, rugged and safe (QuEChERS) method and determin[r] ... See full document
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J. Braz. Chem. Soc. vol.27 número1
... The X-ray crystal structure analysis of compound A 2 confirms the formation of a Lewis acid/Lewis base adduct, by coordination of BCF with the carbonyl functionality (Figure 7). The ce[r] ... See full document
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J. Braz. Chem. Soc. vol.27 número1
... Reaction conditions including catalyst type, oxidant, reaction time, reaction temperature, TBHP amount, solvent type and solvent amount were systematically optimized in order to achiev[r] ... See full document
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J. Braz. Chem. Soc. vol.27 número1
... The distribution coefficient of chromium between aqueous and the membrane phases (TOPO-toluene) is given by equations 8-10 and were calculated by taking care of mass balance of chromi[r] ... See full document
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J. Braz. Chem. Soc. vol.27 número1
... In case of the extraction performed in poultry kidney, the factors percentage of acetic acid in the extraction phase and sorbent used in clean-up showed positive effects. The extractio[r] ... See full document
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J. Braz. Chem. Soc. vol.27 número1
... This study investigates the methods for iron and zinc determination in serum and hair samples using graphite furnace atomic absorption spectrometry (GF AAS) after dissolution with Uni[r] ... See full document
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J. Braz. Chem. Soc. vol.27 número1
... Unquestionably, design and synthesis of the reagents for the formation of remarkably stable and selective complexes with metal cations is very significant in the efficient transport of cations through the liquid membrane ... See full document
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J. Braz. Chem. Soc. vol.27 número1
... M. V. N.; Bioorg. Med. Chem. Lett. 2009, 19, 6272; Souza, M. V. N.; Pais, K. C.; Kaiser, C. R.; Peralta, M. A.; Ferreira, M. L.; Lourenço, M. C. S.; Bioorg. Med. Chem. Lett. 2009, 17, 1474; Singh, P.; ... See full document
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J. Braz. Chem. Soc. vol.27 número1
... (GC×GC/TOF MS), using a Pegasus-IV system (LECO Corporation, MO, USA) equipped with a liquid nitrogen quad-jet modulator and a CTC CombiPAL Autosampler. The columns used in the first and second dimensions were: a DB-5 ... See full document
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J. Braz. Chem. Soc. vol.27 número1
... UV (ultraviolet) spectra were obtained using a Shimadzu UV-2401A spectrophotometer. A Tenor 27 spectrophotometer was used for scanning infrared (IR) with KBr pellets. 1D and 2D nuclear magnetic resonance (NMR) ... See full document
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J. Braz. Chem. Soc. vol.27 número1
... The most important proposed interaction pathways between metal ions and fungal systems are based on (i) the active exudation of soluble substances (organic acids, phosphates, siderop[r] ... See full document
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