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Megastimanes and ergostane type steroid from leaves Cratylia mollis (Leguminosae)
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- From the methanolic extract of the leaves of Cratylia mollis were obtained by chromatographic techni...
- doi：
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10.1590/S0103-50532009001000022
- 作 者：
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David, Juceni P.;Lim...
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Journal of the Brazilian Chemical Society
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Speeding up HCl extractions by employing ultrasound energy to evaluate trace elements bioavailability in sediments
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- A three factors analysis of variance was used to test the significance of the type of vessel, the ty...
- doi：
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10.1590/S0103-50532009000500007
- 作 者：
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Hatje, Vanessa;Cotri...
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Journal of the Brazilian Chemical Society
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Novel aminonaphthoquinone mannich bases derived from lawsone and their copper(II) complexes: synthesis, characterization and antibacterial activity
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- A series of novel Mannich bases (HL1-HL13) derived from 2-hydroxy-1,4-naphthoquinone (lawsone), subs...
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10.1590/S0103-50532009000400015
- 作 者：
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Costa, Gisela L. da;...
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Journal of the Brazilian Chemical Society
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Chemical and biological evaluation of essential oils with economic value from Lauraceae species
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- This work compares the chemical composition of the essential oils from the leaves of Licaria canella...
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10.1590/S0103-50532009000600011
- 作 者：
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Silva, Jefferson R. ...
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Journal of the Brazilian Chemical Society
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Chemical constituents from the roots of Spathelia excelsa and their antiprotozoal activity
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- Phytochemical investigation from roots of Spathelia excelsa yielded the chromones 10(2,3-epoxy-3-met...
- doi：
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10.1590/S0103-50532009000600014
- 作 者：
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Ferreira, Antonio Gi...
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Journal of the Brazilian Chemical Society
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Oscillatory behaviour of isomers of hydroxybenzoic acid with and without catalyst
- 摘要：
- The present work establishes and compares the oscillatory behaviour of mono-, di- and trihydroxybenz...
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10.1590/S0103-50532009000100002
- 作 者：
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Peerzada, G. M.;Univ...
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Journal of the Brazilian Chemical Society
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Degradation of the insecticides Thiamethoxam and Imidacloprid in aqueous solution as promoted by an innovative Feº/Fe3O4 composite
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- The performance of an innovative Fe脗潞/Fe3O4 composite to degrade the insecticides Thiamethoxam and I...
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10.1590/S0103-50532009000100010
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Universidade Federal...
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Journal of the Brazilian Chemical Society
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Study on the interaction between morin-bi(III) complex and DNA with the use of methylene blue dye as a fluorophor probe
- 摘要：
- Based on our investigation, although both morin-Bi(III) complex and morin can bind to DNA, the natur...
- doi：
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10.1590/S0103-50532009000200011
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University of Arak, ...
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Journal of the Brazilian Chemical Society
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Potentiometric acidity determination in humic substances influenced by different analytical procedures
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- Carboxylic (CA), phenolic (PhA) and total (TA) acidity contents of five International Humic Substanc...
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10.1590/S0103-50532009000900021
- 作 者：
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Giacomelli, Cristian...
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- 期刊标题：
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Journal of the Brazilian Chemical Society
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Electronic conduction and electrocatalysis by supramolecular tetraruthenated copper porphyrazine films
- 摘要：
- A new tetraruthenated copper(II)-tetra(3,4-pyridyl)porphyrazine species, [CuTRPyPz]4+, has been synt...
- doi：
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10.1590/S0103-50532009000400016
- 作 者：
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Toyama, Marcos M.;Ar...
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Journal of the Brazilian Chemical Society
