Identification of some chemical constituents of Indigofera hirsuta Linn. (Fabaceae) by HPLC-ESI-MS (TOF) and evaluation of the antiradical activity
摘要：
A rapid analytical approach, suitable to characterize the compounds present in the aqueous and metha...
doi：
10.1590/S0100-40422011000700006
作 者：
Vilega, Wagner;Unive...
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Química Nova
Cytotoxic derivatives of withanolides isolated from the leaves of Acnistus arborescens
摘要：
In view of anticancer activity of 7 尾-acetoxywithanolide D (2) and 7尾-16伪-diacetoxywithonide D (3), ...
doi：
10.1590/S0100-40422011000200013
作 者：
Barata, Lauro E. S.;...
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Química Nova
The importance of pre-treatment of spent hydrotreating catalysts on metals recovery
摘要：
This work describes a three-step pre-treatment route for processing spent commercial NiMo/Al2O3 cata...
doi：
10.1590/S0100-40422011000100027
作 者：
Pereira, Alexandre L...
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Química Nova
Effect of drying-air temperature on content and chemical composition of the essential oil of Pectis brevipedunculata
摘要：
Leaves and flower heads of P. brevipedunculata were submitted to four drying-air temperatures (room ...
doi：
10.1590/S0100-40422011000700018
作 者：
Moreira, Rafaela Oli...
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Química Nova
Indomethacin solubility estimation in 1,4-dioxane + water mixtures by the extended hildebrand solubility approach
摘要：
Extended Hildebrand Solubility Approach (EHSA) was successfully applied to evaluate the solubility o...
doi：
10.1590/S0100-40422011000900016
作 者：
Ruidiaz, Miller A;Un...
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Química Nova
Sequential injection analysis system with spectrophotometric detection for determination of norfloxacin and ciprofloxacin in pharmaceutical formulations
摘要：
This work proposes a sequential injection analysis (SIA) system for the spectrophotometric determina...
doi：
10.1590/S0100-40422011000200016
作 者：
Pezza, Leonardo;Sara...
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Química Nova
Removal of high-molecular weight polycyclic aromatic hydrocarbons
摘要：
Alternatives for the removal of high-molecular weight polycyclic aromatic hydrocarbons (HWM-PAH) fro...
doi：
10.1590/S0100-40422011000200009
作 者：
Universidade Federal...
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Química Nova
Improving the mechanical properties of polyamide 6-nanosilica nanocomposites by combining masterbatch technique with in situ polymerization
摘要：
A reactive polyamide 6 (PA6)/SiO2 masterbatch (MA) containing 20% (mass fraction) of nano-SiO2 was p...
doi：
10.5935/0103-5053.20140099
作 者：
Li, Xiaohong;Huanghu...
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Journal of the Brazilian Chemical Society
A simple, fast and efficient method for transesterification of fatty acids in foods assisted by ultrasound energy
摘要：
Actually, it is highly desirable to develop analytical assays with high quality results, while reduc...
doi：
10.5935/0103-5053.20140166
作 者：
Maruyama, Swami A.;M...
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Journal of the Brazilian Chemical Society
Antioxidant activities and phenolic compounds of cornhusk, corncob and stigma maydis
摘要：
Cornhusk, corncob, and stigma maydis were extracted with water, aqueous ethanol, aqueous methanol, a...
doi：
10.5935/0103-5053.20140177
作 者：
Yunnan University, K...
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Journal of the Brazilian Chemical Society
