[PDF] Top 20 J. Braz. Chem. Soc. vol.26 número7
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J. Braz. Chem. Soc. vol.26 número7
... This is a key point for the development of the chemistry of natural product area: good journals and good papers, which means good science for the benefit of the country. So, I would l[r] ... See full document
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J. Braz. Chem. Soc. vol.26 número7
... acenaphthene (Ace), acenaphthylene (Acft), biphenyl (Bif), dibenzothiophene (DBT), methyldibenzothiophene (Met-DBT), dimethyldibenzothiophene (Dimet-DBT), anthracene (Ant), phenanthrene (Phe), methylphenanthrene ... See full document
12
J. Braz. Chem. Soc. vol.26 número7
... The active chloroform soluble fraction obtained from the MeOH crude extract partition of S. brasiliensis stems, was submitted to various chromatographic procedures in silica gel and Sephadex LH-20 to afford compounds 1 ... See full document
5
J. Braz. Chem. Soc. vol.26 número7
... increases in the order of FeCu-PVA < FeCu-Blank < FeCu- PVP < FeCu-PEG, so it can be concluded that more active phase were generated with addition of PVA in the course of preparing the binary matrix, which can ... See full document
7
J. Braz. Chem. Soc. vol.26 número7
... The reactor used in this work was idealized aiming efluent treatment that, besides promoting oxidation of organic matter, would concomitantly eliminate the foam formed during the trea[r] ... See full document
11
J. Braz. Chem. Soc. vol.26 número7
... Synthesis of dithiocarbamates by the one-pot three-component Markovnikov addition reaction of an amine, carbon disulfide and an alkyl vinyl ether or N-vinylpyrrolidone is reported in p[r] ... See full document
9
J. Braz. Chem. Soc. vol.26 número7
... For this, the determination of the kinetic activation parameters (i.e., activation energies, enthalpies, entropies and Gibbs free energies of activation, and pre-exponential factors) [r] ... See full document
6
J. Braz. Chem. Soc. vol.26 número7
... Polytetrafluorethylene Membrane-Based Liquid Three-Phase Micro Extraction Combined with in situ Differential Pulse Anodic Stripping Voltammetry for the Determination of Cadmium Ions [r] ... See full document
9
J. Braz. Chem. Soc. vol.26 número7
... In the proposed method, an ultrasound-assisted emulsification microextraction (USAEME) based on applying low density organic solvents as a new sample preparation technique was used fo[r] ... See full document
7
J. Braz. Chem. Soc. vol.26 número7
... The swelling behavior, mechanical flexibility, hydrolytic degradation rate and protein adsorption of PVA-HA hydrogel membranes increased with increasing the HA content in hydrogel co[r] ... See full document
9
J. Braz. Chem. Soc. vol.26 número7
... The reaction of ethyl ( p -methoxyphenylimino)acetate with propargyl bromide mediated by activated zinc powder afforded alkynyl amine, which was then reacted with a variety of organic [r] ... See full document
9
J. Braz. Chem. Soc. vol.26 número7
... 20. Acebey-Castellon, I. L.; Voutquenne-Nazabadioko, L.; Huong, D. T. M.; Roseau, N.; Bouthagane, N.; Muhammad, D.; Le Magrex Debar, E.; Gangloff, S. C.; Litaudon, M.; Sevenet, T.; Nguyen, V. H.; Lavaud, C.; J. ... See full document
7
J. Braz. Chem. Soc. vol.26 número7
... Although the intensity method (method A) does not provide the best estimate of cellulose crystallinity, this method presented the best regression model and is also the reference metho[r] ... See full document
9
J. Braz. Chem. Soc. vol.26 número7
... those cases, the high F values were consequences of the results obtained with Wijs method having higher standard deviations, meaning that the proposed methods were more precise than W[r] ... See full document
7
J. Braz. Chem. Soc. vol.26 número7
... solvent, and TMS was used as an internal standard in 5 mm samples tubes. Chemical shifts are expressed in ppm, and J values are given in Hz. High-resolution mass spectra (HRMS) were obtained for all compounds on ... See full document
10
J. Braz. Chem. Soc. vol.26 número7
... The principal component analysis of the volatile components that presented higher Fisher ratio also helped to show that the volatile proile of the majority of Moscatel sparkling wines[r] ... See full document
20
J. Braz. Chem. Soc. vol.26 número7
... The results obtained in this study using RSM to determine the effects of three reaction variables - the catalyst concentration, temperature, and molar ratio - on the ester content, vi[r] ... See full document
10
J. Braz. Chem. Soc. vol.26 número7
... From the results of the antibacterial and antifungal activity of metal complexes, it is apparent that the metal complexes show greater antimicrobial activity than that of the free mac[r] ... See full document
7
J. Braz. Chem. Soc. vol.26 número7
... Enzymatic kinetic resolution (EKR) of (±)-cyanohydrins was performed by using immobilized lipase from Candida antarctica (CALB) under conventional ordinary conditions (orbital shaking[r] ... See full document
7
J. Braz. Chem. Soc. vol.26 número7
... To assess the applicability of the fluorescence method in quantifying the adulterant content, an analytical curve was constructed using the concentrations of each adulterant in diesel[r] ... See full document
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