The importance of Hartree's method in teaching quantum chemistry

期刊论文
摘要:
Hartree's original ideas are described. Its connection with electrostatics can be explored in order ...
doi:
10.1590/S0100-40422011000300028
作 者:
Ventura, Elizete;Uni...
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Química Nova

Acidity constants of diprotic acids from potentiometric titrations: principles of the calculation illustrated through the construction of a simple algorithm

期刊论文
摘要:
This work describes the creation of an very simple calculation algorithm, based in basic chemical an...
doi:
10.1590/S0100-40422011000600027
作 者:
Departamento de Quím...
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Química Nova

Problem-based learning: a teaching toxicology chemistry experience

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摘要:
This article describes a Problem-Based Learning (PBL) experience that taught organophosphorus pestic...
doi:
10.1590/S0100-40422011000700029
作 者:
Lopes, Renato Matos;...
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Química Nova

Determination of polychlorinated biphenyls in umbilical cord serum by acid hydrolyze extraction followed by gas chromatography with micro-electron-capture detection

期刊论文
摘要:
The present work describes the determination of polychlorinated biphenyls in 123 umbilical cord seru...
doi:
10.1590/S0100-40422011000300015
作 者:
Wagner, Roger;Costab...
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Química Nova

Analysis of organochlorine pesticides in water using headspace solid phase microextraction with gas chromatography and mass spectrometry

期刊论文
摘要:
A method based on headspace - solid phase microextraction coupled with gas chromatography - mass spe...
doi:
10.1590/S0100-40422011000700026
作 者:
Prates, Crislaine Ba...
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Química Nova

Adsorption of methylene blue on clay minerals particles: analysis of the clay particle sizes

期刊论文
摘要:
Interactions of cationic dye methylene blue (MB) with clay particles in aqueous suspension have been...
doi:
10.1590/S0100-40422011000400006
作 者:
Universidade de São ...
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Química Nova

Adsorption of congo red dye by hydrophobic o-carboxymethyl chitosan derivatives

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摘要:
Hydrophobically modified O-carboxymethylchitosan derivatives were synthesized through a reaction wit...
doi:
10.1590/S0100-40422011000500007
作 者:
Universidade do Vale...
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Química Nova

Self-association of Sodium Dodecanoate (SDoD) and Sodium Decanoate (SDeC) with the Hydrophobically modified polymer Ethyl(Hydroxyethyl)cellulose (EHEC)

期刊论文
摘要:
In this work, the interactions between the non-ionic polymer of ethyl(hydroxyethyl)cellulose (EHEC) ...
doi:
10.1590/S0100-40422011000600017
作 者:
Minatti, Rogério Lau...
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Química Nova

Optimization and validation multiresidue method for sulfonamides determination in shrimp by high performance liquid chromatography with detection by UV

期刊论文
摘要:
This work reports the optimization and method validation for sulfonamides (sulfamethazine, sulfaquin...
doi:
10.1590/S0100-40422011000700027
作 者:
Santos, Paloma Nasci...
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Química Nova

Biodegradation of dyes in textile wastewater by fungus Ganoderma sp: a kinetic study

期刊论文
摘要:
The kinetics of biodegradation by the fungus Ganoderma sp of textile dyes Yellow, Blue and Red Proci...
doi:
10.1590/S0100-40422011000400003
作 者:
Afonso, Renata;Barre...
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期刊标题:
Química Nova
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