Evaluation of the effect of carbonate concentration in the copper electrodeposition on mild steel blankets

期刊论文
摘要:
Mild steel blankets were covered with electrolytic copper thin layer, from cyanide bath, being evalu...
doi:
10.1590/S0100-40422008000700041
作 者:
Universidade Federal...
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Química Nova

Ethanol production from castor bean cake (Ricinus communis L.) and evaluation of the lethality of the cake for mice

期刊论文
摘要:
The castor bean cake is rich in starch (48 卤 0.53%) and bears a problem linked to the occurrence of ...
doi:
10.1590/S0100-40422008000500031
作 者:
Pereira Jr., Nei;Uni...
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Química Nova

Trace elements and sodium in grape juice: nutritional and toxicological aspects

期刊论文
摘要:
Eight trace elements were determined in 20 Brazilian brands of grape juice, distributed over the cou...
doi:
10.1590/S0100-40422008000800006
作 者:
Universidade Federal...
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期刊标题:
Química Nova

Novidades em QN

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摘要:
doi:
10.1590/S0100-40422008000700001
作 者:
Torresi, Susana I. C...
作者机构:
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期刊标题:
Química Nova

Internet as a source of bibliographic information in chemistry

期刊论文
摘要:
The internet is an important tool for obtaining information. It offers vast amounts of information r...
doi:
10.1590/S0100-40422008000200045
作 者:
Barros, José Celesti...
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Química Nova

Cloud point extraction for the determination of copper in environmental samples by flame atomic absorption spectrometry

期刊论文
摘要:
A simple cloud point extraction procedure is presented for the preconcentration of copper in various...
doi:
10.1590/S0100-40422008000100015
作 者:
Fathi, Mohammad Reza...
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Química Nova

Validation of hplc methods for analysis of vitamins B1, B2, B6 and niacin naturally present in cereal flours

期刊论文
摘要:
Complex B vitamins are present in some cereal foods and the ingestion of enriched products contribut...
doi:
10.1590/S0100-40422008000300006
作 者:
Almeida-Muradian, Li...
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Química Nova

Simultaneous determination of arsenic, cadmium and lead by GF AAS in purified water samples for hemodialysis after multivariate optimization based on factorial design

期刊论文
摘要:
This paper reports the development of a methodology for simultaneously determining As, Cd and Pb, em...
doi:
10.1590/S0100-40422008000500006
作 者:
Jacob, Silvana do Co...
作者机构:
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期刊标题:
Química Nova

Structure, reactivity, and biological properties of hidantoines

期刊论文
摘要:
Hydantoin (imidazolidine-2,4-dione) is a 2,4-diketotetrahydroimidazole discovered by Baeyer in 1861....
doi:
10.1590/S0100-40422008000300029
作 者:
Pitta, Ivan da Rocha...
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Química Nova

Arsenic mobilization from sulfidic materials from gold mines in Minas Gerais State

期刊论文
摘要:
Acid drainage results from exposition of sulfides to the atmosphere. Arsenopyrite is a sulfide that ...
doi:
10.1590/S0100-40422008000500037
作 者:
Santana Filho, Salom...
作者机构:
期刊编号:
期刊标题:
Química Nova
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