HPLC-UV and LC-MS analysis of quinonemethides triterpenes in hydroalcoholic extracts of "espinheira santa" (Maytenus aquifolium Martius, Celastraceae) leaves
摘要：
Some quinonemethide triterpenes are known for their cytotoxicity, and the presence of these compound...
doi：
10.1590/S0103-50532004000400022
作 者：
Lanças, Fernando M.;...
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Journal of the Brazilian Chemical Society
Evaluation of the mixtures ammonium phosphate/magnesium nitrate and palladium nitrate/magnesium nitrate as modifiers for simultaneous determination of Cd, Cr, Ni and Pb in mineral water by GFAAS
摘要：
A method is described for the simultaneous determination of Cd, Cr, Ni and Pb in mineral water sampl...
doi：
10.1590/S0103-50532004000100006
作 者：
Fernandes, Kelly G;G...
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期刊标题：
Journal of the Brazilian Chemical Society
Behavior of a Co-Cr-Mo biomaterial in simulated body fluid solutions studied by electrochemical and surface analysis techniques
摘要：
The behavior of a Co-Cr-Mo biomaterial used as dental prosthesis was studied by electrochemical (Ope...
doi：
10.1590/S0103-50532004000400016
作 者：
Giacomelli, Cristian...
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期刊标题：
Journal of the Brazilian Chemical Society
Hot-filament metal oxide deposition (HFMOD): a novel method for depositing thin films of metallic oxides
摘要：
This short report describes a novel method for the synthesis of metal oxide thin films. The experime...
doi：
10.1590/S0103-50532004000200026
作 者：
Universidade Estadua...
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期刊标题：
Journal of the Brazilian Chemical Society
Direct solid sampling by flame atomic absorption spectrometry: determination of manganese in coal samples
摘要：
A new device for the direct solid analysis by flame atomic absorption spectrometry was investigated ...
doi：
10.1590/S0103-50532004000200007
作 者：
Barin, Juliano S.;Fl...
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期刊标题：
Journal of the Brazilian Chemical Society
Retention of cellulose, xylan and lignin in kraft pulping of eucalyptus studied by multivariate data analysis: influences on physicochemical and mechanical properties of pulp
摘要：
Effects of pulping variables on the retention of carbohydrates and lignin in fast kraft pulping of e...
doi：
10.1590/S0103-50532004000400012
作 者：
Universidade Estadua...
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期刊标题：
Journal of the Brazilian Chemical Society
Vinylic tellurides as precursors in a stereoselective and convergent route to Z-enynes and Z-trisubstituted enediynes
摘要：
Vinylic tellurides of Z configuration are transformed into higher order Z-vinyl cyanocuprates by tra...
doi：
10.1590/S0103-50532004000300004
作 者：
Comasseto, João V.;R...
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期刊标题：
Journal of the Brazilian Chemical Society
Flavonoids from Chiococca braquiata (Rubiaceae)
摘要：
A new flavonol 4'-methoxykaempferol-7-(acetyloxy)-3,5-O-a-L-rhamnoside (1), was isolated from the le...
doi：
10.1590/S0103-50532004000400004
作 者：
Lopes, Marcia N.;Ins...
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期刊标题：
Journal of the Brazilian Chemical Society
Gran method for end point anticipation in monosegmented flow titration
摘要：
An automatic potentiometric monosegmented flow titration procedure based on Gran linearisation appro...
doi：
10.1590/S0103-50532004000100017
作 者：
Universidade Estadua...
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期刊编号：
期刊标题：
Journal of the Brazilian Chemical Society
Determination of Cu, Ni and Pb in aqueous medium by FAAS after pre-concentration on 2-aminothiazole modified silica gel
摘要：
This work describes the synthesis and characterization of 2-aminothiazole modified silica gel (SiAT)...
doi：
10.1590/S0103-50532004000300005
作 者：
Florentino, Ariovald...
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期刊标题：
Journal of the Brazilian Chemical Society
