Quantitative reflectance spot test for the determination of acetylsalicylic acid in pharmaceutical preparations
摘要：
This paper describes a quantitative reflectance spot test procedure for the determination of acetyls...
doi：
10.1590/S0103-50532004000200027
作 者：
Tubino, Matthieu;Uni...
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Journal of the Brazilian Chemical Society
Phase-boundary catalysts for acid-catalyzed reactions: the role of bimodal amphiphilic structure and location of active sites
摘要：
The catalytic potential of phase-boundary catalyst for acid-catalyzed reactions has been demonstrate...
doi：
10.1590/S0103-50532004000500018
作 者：
Ikeda, Shigeru;Ohtan...
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Journal of the Brazilian Chemical Society
Phytochemistry of Trattinnickia burserifolia, T. rhoifolia, and Dacryodes hopkinsii: chemosystematic implications
摘要：
Trattinnickia burserifolia has yielded the known ursanes, a-amyrenone, a-amyrin, 3-epi-a-amyrin, 3a,...
doi：
10.1590/S0103-50532004000300008
作 者：
Universidade Federal...
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Journal of the Brazilian Chemical Society
A complete model of the Plasmodium falciparum bifunctional enzyme dihydrofolate reductase-thymidylate synthase: a model to design new antimalarials
摘要：
We propose a theoretical model for pfDHFR-TS, which includes the 55 aminoacid residues ignored in th...
doi：
10.1590/S0103-50532004000300019
作 者：
França, Tanos C. C.;...
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期刊标题：
Journal of the Brazilian Chemical Society
Mixed solid device based on conducting polymer composite and polymer electrolyte
摘要：
Tetraethyl orthosilicate (TEOS) derived sol-gel porous films have been utilized as template for the ...
doi：
10.1590/S0103-50532004000300009
作 者：
Universidade São Fra...
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Journal of the Brazilian Chemical Society
Triterpenes and triterpenoidal glycosides from the fruits of Ilex paraguariensis (Maté)
摘要：
A new triterpenoid glycoside, 3b-O-a-L-arabinopyranosyl rotundic acid, named here mateside (4), and ...
doi：
10.1590/S0103-50532004000200008
作 者：
Breitmaier, Eberhard...
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期刊标题：
Journal of the Brazilian Chemical Society
Changes in lead and mercury atmospheric deposition due to industrial emissions in Southeastern Brazil
摘要：
This study presents the first estimate of Pb and Hg loads to southeastern Brazil, the most industria...
doi：
10.1590/S0103-50532004000600022
作 者：
Lacerda, L. D.;Unive...
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期刊标题：
Journal of the Brazilian Chemical Society
Factorial experimental design optimization of solid phase microextraction (SPME) conditions for analysis of butylated hydroxytoluene (BHT) in bottled water
摘要：
BHT is an antioxidant utilized as additive in some foods and in packaging plastics, and its presence...
doi：
10.1590/S0103-50532004000500008
作 者：
Universidade Estadua...
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期刊标题：
Journal of the Brazilian Chemical Society
Effectiveness of selective chemical treatments on concentrating magnetic minerals of samples from a nickel-ore peridotite mantle
摘要：
Two magnetic samples, collected at 5聽m and 52聽m from the top of a weathering mantle developing on pe...
doi：
10.1590/S0103-50532004000600015
作 者：
Fabris, José D.;Leli...
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期刊标题：
Journal of the Brazilian Chemical Society
Structure and electronic properties of alkylthiophenes coupled by Head-to-Tail and Head-to-Head regioselectivity
摘要：
In the present paper a theoretical analysis of alkylthiophenes with Head-Tail-Head-Tail (HT-HT) and ...
doi：
10.1590/S0103-50532004000600008
作 者：
Almeida, Wagner B. d...
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期刊标题：
Journal of the Brazilian Chemical Society
