Slurry sampling for Hg determination in sediments, sewage sludge and coal samples by cold vapor atomic absorption spectrometry
摘要：
A simple and robust method for the determination of Hg in environmental samples by slurry sampling c...
doi：
10.1590/S0103-50532004000600007
作 者：
Vieira, Mariana A.;R...
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Journal of the Brazilian Chemical Society
Three new natural cyclopentenedione derivatives from Piper carniconnectivum
摘要：
Three new natural cyclopentenedione derivatives (1-3) and the known coumarin xanthyletin (4) were is...
doi：
10.1590/S0103-50532004000100022
作 者：
Braz-Filho, Raimundo...
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期刊标题：
Journal of the Brazilian Chemical Society
Fourier transform infrared determination of imidacloprid in pesticide formulations
摘要：
A simple method has been developed for Fourier Transform Infrared (FTIR) determination of Imidaclopr...
doi：
10.1590/S0103-50532004000200023
作 者：
Quintás, Guillermo;U...
作者机构：
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期刊标题：
Journal of the Brazilian Chemical Society
Additive effects of methyl ketones in the Belousov-Zhabotinsky reactions
摘要：
The role of the methyl ketones in oscillating reactions of the Belousov-Zhabotinsky (BZ) type is to ...
doi：
10.1590/S0103-50532004000600010
作 者：
Universidad Nacional...
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期刊标题：
Journal of the Brazilian Chemical Society
Synthesis and characterization in solution and in the solid State of the palladium aryl bromide complexes [Pd(Ar)Br{(S)-BINAP}]: formation of cyclopalladated complexes and direct observation of a C-N reductive elimination to form heterocycles
摘要：
The complexes resulting from the 1:4 mixture of [Pd2(dba)3] and P(o-tolyl)3 in benzene react with or...
doi：
10.1590/S0103-50532004000100014
作 者：
Massachusetts Instit...
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期刊标题：
Journal of the Brazilian Chemical Society
Determination of vanadium in urine by electrothermal atomic absorption spectrometry using hot injection and preconcentration into the graphite tube
摘要：
In this work it was developed a procedure for the determination of vanadium in urine samples by elec...
doi：
10.1590/S0103-50532004000500011
作 者：
Fernandes, Kelly G.;...
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期刊编号：
期刊标题：
Journal of the Brazilian Chemical Society
Monitoring of pesticides and polycyclic aromatic hydrocarbons in water from Paraíba do Sul River, Brazil
摘要：
The Para铆ba do Sul River, in the State of Rio de Janeiro, was studied for its water quality, by dete...
doi：
10.1590/S0103-50532004000200021
作 者：
Reis, Ederson O. dos...
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期刊标题：
Journal of the Brazilian Chemical Society
Luxenchalcone, a new bichalcone and other constituents from Luxemburgia octandra
摘要：
Chromatographic fractionation of leaves and branches extracts from Luxemburgia octandra (Ochnaceae) ...
doi：
10.1590/S0103-50532004000100023
作 者：
Alves, Cassia C. Fer...
作者机构：
期刊编号：
期刊标题：
Journal of the Brazilian Chemical Society
Intramolecular ene reactions catalyzed by NbCl5, TaCl5 and InCl3
摘要：
Niobium pentachloride, tantalum pentachloride and indium trichloride efficiently catalysed the cycli...
doi：
10.1590/S0103-50532004000600005
作 者：
Silveira, Denise P.;...
作者机构：
期刊编号：
期刊标题：
Journal of the Brazilian Chemical Society
An efficient monitoring technique for solid-phase reactions by KBr pellets/FT-IR using methyl p-aminobenzoate synthesis assisted by microwave radiation on merrifield resin
摘要：
The use of KBr pellets in infrared spectroscopy has been investigated for monitoring solid-phase rea...
doi：
10.1590/S0103-50532004000500028
作 者：
Eifler-Lima, Vera Lu...
作者机构：
期刊编号：
期刊标题：
Journal of the Brazilian Chemical Society
