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Mössbauer spectroscopy in the characterization of ferrous compounds in soils and its relationship with phosphorus retention
- 摘要:
- The chemical role of iron-bearing compounds on the dynamics of phosphorus in selected Brazilian lato...
- doi:
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10.1590/S0100-40422008000600035
- 作 者:
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Embrapa Solos, Rio d...
- 作者机构:
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- 期刊编号:
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- 期刊标题:
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Química Nova
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Determination of biodiesel percentage in biodiesel: diesel mixtures using mid-infrared spectroscopy
- 摘要:
- Considered the best substitute for diesel, biodiesel can be blended with diesel in any ratio, bringi...
- doi:
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10.1590/S0100-40422008000200041
- 作 者:
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Centro Federal de Ed...
- 作者机构:
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- 期刊编号:
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- 期刊标题:
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Química Nova
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A thermogravimetric analysis of the combustion of a Brazilian mineral coal
- 摘要:
- Knowledge of coal combustion kinetics is crucial for burner design. This work aims to contribute on ...
- doi:
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10.1590/S0100-40422008000100021
- 作 者:
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Universidade de São ...
- 作者机构:
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- 期刊编号:
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- 期刊标题:
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Química Nova
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Antiproliferative activity of Sloanea garckeana K. Schum.
- 摘要:
- The crude methanol extract and hexane, ethyl acetate, chloroform and methanol fractions from leaves ...
- doi:
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10.1590/S0100-40422008000600016
- 作 者:
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Oliveira, Cecília M....
- 作者机构:
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- 期刊编号:
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- 期刊标题:
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Química Nova
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Evaluation of the retinol concentration in UHT milk commercialized in Natal, RN
- 摘要:
- Deficiency of micronutrients is a public health problem. Cow milk is a source of retinol. The object...
- doi:
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10.1590/S0100-40422008000200014
- 作 者:
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Universidade Federal...
- 作者机构:
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- 期刊编号:
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- 期刊标题:
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Química Nova
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Multivariate spectroscopic determination of glucosamine and chondroitin in pharmaceutical formulations
- 摘要:
- The objective of this study was to develop and validate an analytical method for quantification of g...
- doi:
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10.1590/S0100-40422008000600002
- 作 者:
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Universidade Federal...
- 作者机构:
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- 期刊编号:
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- 期刊标题:
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Química Nova
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Didactic experiment on gas chromatography: an environmental and analytical approach
- 摘要:
- This paper describes an experiment to teach the principles of gas chromatography exploring the boili...
- doi:
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10.1590/S0100-40422008000800047
- 作 者:
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Magalhães, Dulce;Uni...
- 作者机构:
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- 期刊编号:
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- 期刊标题:
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Química Nova
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Assessment of fate and bioaccumulation of benzo(a)pirene by computer modeling
- 摘要:
- The objective of this work was to evaluate the environmental distribution of benzo(a)pirene, a polyc...
- doi:
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10.1590/S0100-40422008000500028
- 作 者:
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Martins, Raquel Fern...
- 作者机构:
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- 期刊编号:
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- 期刊标题:
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Química Nova
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Synthesis, characterization and thermal analysis of lithium, sodium and potassium salts of the palmitic acid and its ethyl ester
- 摘要:
- Alkaline salts of the palmitic acid were synthesized and characterized from aqueous and ethanolic me...
- doi:
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10.1590/S0100-40422008000700024
- 作 者:
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Universidade de São ...
- 作者机构:
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- 期刊编号:
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- 期刊标题:
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Química Nova
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Influence of precipitating agent in the preparation of hydrous niobium oxide by the method of homogeneous precipitation
- 摘要:
- This work reports the preparation, characterization and study of the ion exchange behavior of hydrou...
- doi:
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10.1590/S0100-40422005000200016
- 作 者:
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Silva, Maria Lúcia C...
- 作者机构:
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- 期刊编号:
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- 期刊标题:
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Química Nova