Crystallographic analysis of the solid solution of iron doped potassium strontium niobate with tetragonal tungsten bronze structure

期刊论文
摘要:
Solid solution of iron doped potassium strontium niobate with KSr2(FeNb4)O15-螖 stoichiometry was pre...
doi:
10.1590/S0100-40422010000500012
作 者:
Universidade Estadua...
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Química Nova

Influence of dissolved sulfides on copper complexation in surface waters using voltammetric methods

期刊论文
摘要:
In this work a sulfide quantification protocol using voltammetric methods was developed to evaluate ...
doi:
10.1590/S0100-40422010000600006
作 者:
Universidade Estadua...
作者机构:
期刊编号:
期刊标题:
Química Nova

Chemical identification of chlorophenylpiperazine in seized tablets

期刊论文
摘要:
Designer drug is a term used to describe psychoactive drugs of abuse which are usually synthesized b...
doi:
10.1590/S0100-40422010000300042
作 者:
Costa, José Luiz;Lan...
作者机构:
期刊编号:
期刊标题:
Química Nova

A fitoterapia no mundo atual

期刊论文
摘要:
doi:
10.1590/S0100-40422010000900001
作 者:
Ferreira, Vitor F.;P...
作者机构:
期刊编号:
期刊标题:
Química Nova

The water quality as an indicator of land use and occupation: Gama basin-DF

期刊论文
摘要:
The spread of Bras铆lia isn't accompanied by correct support of land occupation, situation that is re...
doi:
10.1590/S0100-40422010000100018
作 者:
Boaventura, Geraldo ...
作者机构:
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期刊标题:
Química Nova

Determination of rutin and narcissin in marigold extract and topical formulations by liquid chromatography: applicability in skin penetration studies

期刊论文
摘要:
A chromatographic technique for determination of rutin and narcissin in marigold extract and topical...
doi:
10.1590/S0100-40422010000600019
作 者:
Fonseca, Maria José ...
作者机构:
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期刊标题:
Química Nova

Thermodynamic study of the solubility of sodium naproxen in some ethanol + water mixtures

期刊论文
摘要:
By using the van't Hoff and Gibbs equations the apparent thermodynamic functions Gibbs energy, entha...
doi:
10.1590/S0100-40422010000900019
作 者:
Universidad Nacional...
作者机构:
期刊编号:
期刊标题:
Química Nova

Extended Hildebrand solubility approach in the estimation of ketoprofen solubility in ethanol + water cosolvent mixtures

期刊论文
摘要:
Extended Hildebrand Solubility Approach (EHSA) developed by Martin et al. was applied to evaluate th...
doi:
10.1590/S0100-40422010000200025
作 者:
Universidad Nacional...
作者机构:
期刊编号:
期刊标题:
Química Nova

Supramolecular organization of cobalt (II) phthalocyanine on the pathway of cysteine oxidation

期刊论文
摘要:
The interest in the chemistry of cobalt (II) tetrasulfonated phthalocyanine (PcTsCo) comes mainly fr...
doi:
10.1590/S0100-40422010000300009
作 者:
Santos, Amanda Costa...
作者机构:
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期刊标题:
Química Nova

Evaluation of sample preparation of the detergent powder using factorial design

期刊论文
摘要:
The decomposition of detergent powder samples in a microwave oven and autoclave was evaluated. To es...
doi:
10.1590/S0100-40422010000500035
作 者:
Universidade Federal...
作者机构:
期刊编号:
期刊标题:
Química Nova
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