Solid sampling graphite furnace atomic absorption spectrometry: a review

期刊论文
摘要:
This is a review of direct analysis using solid sampling graphite furnace atomic absorption spectrom...
doi:
10.1590/S0100-40422008000100022
作 者:
Oliveira, Pedro Vito...
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Química Nova

HPLC-ESI-MS/MS analysis of oxidized di-caffeoylquinic acids generated by metalloporphyrin-catalyzed reactions

期刊论文
摘要:
This paper reports an HPLC-ESI-MS/MS investigation on the oxidation of 3,5- and 4,5- dicaffeoylquini...
doi:
10.1590/S0100-40422008000400011
作 者:
Universidade de São ...
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Química Nova

Principal applications of microwaves in production and refining of petroleum

期刊论文
摘要:
Microwave irradiation offers a clean, inexpensive, and convenient method of heating, which is an alt...
doi:
10.1590/S0100-40422008000600046
作 者:
Nele, Márcio;Egues, ...
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Química Nova

Electrochemical behavior of N-nitrosothiazolidine carboxilic acid on gold and mercury electrodes

期刊论文
摘要:
The electrochemical behavior of N-nitrosothiazolidine carboxylic acid (NTAC) on gold and hanging mer...
doi:
10.1590/S0100-40422008000500023
作 者:
Codognoto, Lucia;Uni...
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Química Nova

Hydrometallurgical route to recover molybdenum, nickel, cobalt and aluminum from spent hydrotreating catalysts in acid medium

期刊论文
摘要:
This work describes a hydrometallurgical route for processing spent commercial catalysts (CoMo and N...
doi:
10.1590/S0100-40422008000300036
作 者:
Afonso, Julio Carlos...
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期刊标题:
Química Nova

Sampling of particulate matter and of the volatile organic fraction of emissions from a diesel cycle engine without the use of dilution tunnel

期刊论文
摘要:
Using a sampling method of particulate matter (PM) without the use of a dilution tunnel allows for e...
doi:
10.1590/S0100-40422008000800021
作 者:
Cataluña, Renato;Men...
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Química Nova

Polyurethanes sintetized of polyols obtained from castor oil modified by transesterification with pentaerythritol

期刊论文
摘要:
Castor oil was reacted by transesterification with various percentages in mass of pentaerythritol to...
doi:
10.1590/S0100-40422008000800031
作 者:
Texas A&M University...
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Química Nova

1,2- and 1,3-dihydroxylated and hydroxynitrogenated monoterpenes as chiral ligands in the asymmetric reformatsky reaction

期刊论文
摘要:
This study describes the use of three (-)-a-pinene derivatives, one diol-1,2 [(-)-(1R, 2R, 3S, 5R)-2...
doi:
10.1590/S0100-40422008000400004
作 者:
Universidade Federal...
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期刊标题:
Química Nova

Determination of humification degree of organic matter of an oxisol and of its organo-mineral fractions

期刊论文
摘要:
Laser-induced fluorescence spectroscopy was used to determine the humification degree of the organic...
doi:
10.1590/S0100-40422008000800015
作 者:
Leite, Wellington Cl...
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Química Nova

Dipole-dipole operator in angular momentum basis: a complementary study in nuclear magnetic resonance

期刊论文
摘要:
The relationship between the magnetic dipole-dipole potential energy function and its quantum analog...
doi:
10.1590/S0100-40422008000500021
作 者:
Braga, João Pedro;Un...
作者机构:
期刊编号:
期刊标题:
Química Nova
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