Chemical constituents and chromatographic profile of the stem bark of Aspidosperma parvifolium A. DC. ("pau-pereira")
摘要：
Four known alkaloids, uleine, epiuleine, apparicine and desmethyluleine, besides the isoprenoids lup...
doi：
10.1590/S0100-40422004000600011
作 者：
Universidade Federal...
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Química Nova
Ultra-trace monitoring of copper in environmental and biological samples by inductively coupled plasma atomic emission spectrometry after separation and preconcentration by using octadecyl silica membrane disks modified by a new schiff's base
摘要：
Ultra-trace amounts of Cu(II) were separated and preconcentrated by solid phase extraction on octade...
doi：
10.1590/S0100-40422004000200008
作 者：
Ganjali, Mohammad Re...
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Química Nova
Parameter optimization for pesticide multiresidue determination using SPME in water samples
摘要：
In this study the factors that affect the extraction of pesticide residues from water samples for th...
doi：
10.1590/S0100-40422004000500008
作 者：
Komatsu, Emy;Institu...
作者机构：
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Química Nova
Stabilization of zinc-contamined soil using zeolites synthesized from coal ashes
摘要：
The effect of synthetic zeolites on stabilizing Zn-contaminated soil using 0.01 mol L-1 CaCl2 leachi...
doi：
10.1590/S0100-40422004000400012
作 者：
Instituto de Pesquis...
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Química Nova
A simplified procedure for determination of clofentezine residues in fruits by liquid chromatography with UV detection
摘要：
A rapid and sensitive method is described for the determination of clofentezine residues in apple, p...
doi：
10.1590/S0100-40422004000500013
作 者：
Navickiene, Sandro;R...
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Química Nova
Experimental general chemistry: a new teaching approach
摘要：
This essay describes a new didactic approach, in according with the national curriculum guidelines f...
doi：
10.1590/S0100-40422004000100028
作 者：
Universidade Federal...
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Química Nova
The significance of lead speciation analysis in blood plasma for health risk assessment
摘要：
Lead absorption is influenced by the species that are formed and the physicochemical characteristics...
doi：
10.1590/S0100-40422004000200015
作 者：
Moreira, Fátima R.;M...
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期刊标题：
Química Nova
Composition of rainwater in the central region of São Paulo city
摘要：
The chemical composition of rainwater samples collected from March 2002 to February 2003 in downtown...
doi：
10.1590/S0100-40422004000600003
作 者：
Pedrotti, Jairo J.;F...
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Química Nova
Analysis of non-esterified fatty acids in human plasma by capillary gas-chromatography with splitless injection
摘要：
The aim of the present work was to test the combination of non-esterified fatty acid (NEFA) isolatio...
doi：
10.1590/S0100-40422004000400009
作 者：
Ney, Jacqueline G.;U...
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Química Nova
QSAR: the Hansch's approach
摘要：
The Hansch Analysis, also known by QSAR-2D, is an extremely effective tool in the identification and...
doi：
10.1590/S0100-40422004000400018
作 者：
Tavares, Leoberto Co...
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期刊标题：
Química Nova
