Coumarins and Alkaloids from the Stems of Metrodorea Flavida
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doi：
10.1590/S0103-50531999000300004
作 者：
Arruda, Mara S.P.;Mü...
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Journal of the Brazilian Chemical Society
Influence of Extractant and Soil Type on Molecular Characteristics of Humic Substances From Two Brazilian Soils
摘要：
Humic substances (HS) from environmental compartments can strongly differ in their chemical and phys...
doi：
10.1590/S0103-50531999000200012
作 者：
Institute for Spectr...
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Journal of the Brazilian Chemical Society
Multi-method Study on Aquatic Humic Substances from the "Rio Negro" - Amazonas State/Brazil: Emphasis on Molecular-Size Classification of their Metal Contents
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doi：
10.1590/S0103-50531999000300002
作 者：
Rocha, J.C.;Toscano,...
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期刊标题：
Journal of the Brazilian Chemical Society
A direct dynamics study of protonated alcohol dehydration and the Diels-Alder reaction
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The dynamics of dehydration of the protonated (R)-3,3-dimethylbutan-2-ol (pinacolyl alcohol), [(CH3)...
doi：
10.1590/S0103-50532009000400009
作 者：
Teixeira, Erico S.;L...
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期刊标题：
Journal of the Brazilian Chemical Society
Extractive Resolution of racemic mandelic acid through a bulk liquid membrane containing binary chiral carrier
摘要：
A method of bulk liquid membrane (BLM) using complex of di(2-ethylhexyl) phosphoric acid (D2EHPA) an...
doi：
10.1590/S0103-50532009000800016
作 者：
Jiao, Fei Peng;Chen,...
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期刊标题：
Journal of the Brazilian Chemical Society
The search for more pH stable stationary phases for high performance liquid chromatography
摘要：
High performance liquid chromatographic (HPLC) separations are largely carried out using reversed ph...
doi：
10.1590/S0103-50532009000400004
作 者：
Collins, Kenneth E.;...
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期刊标题：
Journal of the Brazilian Chemical Society
Synthesis and antimicrobial evaluation of some new pyrazole, pyrazoline and chromeno[3,4-c]pyrazole derivatives
摘要：
Pyrazole and heterocyclic fused pyrazole derivatives represent an important class of heterocyclic co...
doi：
10.1590/S0103-50532009000500024
作 者：
Al-Aqsa University, ...
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期刊标题：
Journal of the Brazilian Chemical Society
Direct determination of plant-growth related metabolites by capillary electrophoresis with spectrophotometric UV detection
摘要：
The detection of plant hormones and growth regulators is of great interest for many biological studi...
doi：
10.1590/S0103-50532009000100027
作 者：
Arruda, Sandra C. C....
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期刊标题：
Journal of the Brazilian Chemical Society
Flow injection spectrofluorimetric determination of cystine and cysteine
摘要：
A relatively simple and sensitive procedure with spectrofluorimetric detection was developed for the...
doi：
10.1590/S0103-50532009000200013
作 者：
Nouroozi, S.;Rezaei,...
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期刊标题：
Journal of the Brazilian Chemical Society
Nanosized and reusable SiO2/ZrO2 catalyst for highly efficient biodiesel production by soybean transesterification
摘要：
Nanosized SiO2/ZrO2 catalyst with high surface area (131.50 脗卤 14 m2 g-1) was prepared by the sol-ge...
doi：
10.1590/S0103-50532009000900023
作 者：
Suarez, Paulo A. Z.;...
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期刊标题：
Journal of the Brazilian Chemical Society
