Ion exchange chromatography applied to the fractionation of the copaíba oil (Copaifera multijuga) and sacaca (Croton cajucara) extracts
摘要：
Plant extracts are usually complex mixtures which contain several molecules of different sizes with ...
doi：
10.1590/S0100-40422005000400028
作 者：
Veiga Junior, Valdir...
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Química Nova
Physico-chemical alterations of sunflower, corn and soybean oils in deep fat frying
摘要：
The aim of this study is to determine the influence of frying time on the alterations of sunflower, ...
doi：
10.1590/S0100-40422005000600003
作 者：
Malacrida, Cassia Ro...
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Química Nova
Pentacyclic triterpenoids from the leaves of Terminalia brasiliensis
摘要：
Eleven oleanane, ursane and lupane-type triterpenes were isolated from the leaves of Terminalia bras...
doi：
10.1590/S0100-40422005000600012
作 者：
Chaves, Mariana H.;A...
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Química Nova
Quantification of atmosphere - soil mercury fluxes by using a dynamic flux chamber: application at the Negro River basin, Amazon
摘要：
Gaseous mercury sampling conditions were optimized and a dynamic flux chamber was used to measure th...
doi：
10.1590/S0100-40422005000600007
作 者：
Magarelli, Gabriella...
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Química Nova
Monomer conversion of composite dental resins photoactivated by a halogen lamp and a LED: a FT-Raman spectroscopy study
摘要：
Eighteen circular blocks of resins cured either by a LED or a halogen lamp (20, 40 and 60 s), had th...
doi：
10.1590/S0100-40422005000200012
作 者：
Universidade do Vale...
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Química Nova
PARAFAC: a chemometric tool for multi-dimensional data treatment. Applications in direct determination of drugs in human plasma by spectrofluorimetry
摘要：
Since the last decade, the combined use of chemometrics and molecular spectroscopic techniques has b...
doi：
10.1590/S0100-40422005000500032
作 者：
Poppi, Ronei J.;Sena...
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Química Nova
Biomimetic polymers in analytical chemistry. Part 1: preparation and applications of MIP (Molecularly Imprinted Polymers) in extraction and separation techniques
摘要：
MIPs are synthetic polymers that are used as biomimetic materials simulating the mechanism verified ...
doi：
10.1590/S0100-40422005000600024
作 者：
Kubota, Lauro Tatsuo...
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Química Nova
Metallic complexes with glyphosate: a review
摘要：
We present studies involving metallic ions and the herbicide glyphosate. The metallic complexes of C...
doi：
10.1590/S0100-40422005000600019
作 者：
Mazo, Luiz Henrique;...
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Química Nova
Construction of a low-cost ultraviolet-viewing cabinet with lamp
摘要：
Thin layer chromatography is a quick, inexpensive and effective way of screening mixtures of non-vol...
doi：
10.1590/S0100-40422005000500034
作 者：
Milagres, Benjamin G...
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Química Nova
Removal of copper (II) from aqueous solution on NaX zeolite: effect of particle size
摘要：
The present study consists in evaluating the NaX zeolite efficiency in removing Cu2+ from aqueous so...
doi：
10.1590/S0100-40422005000300006
作 者：
Machado, Nadia R. C....
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Química Nova
