Chemical Fractionating
Mostrando 1-6 de 6 artigos, teses e dissertações.
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1. Performance Evaluation of a Portable Laser-Induced Fluorescence Spectroscopy System for the Assessment of the Humification Degree of the Soil Organic Matter
Laser-induced fluorescence spectroscopy (LIFS) has shown advantages for analyses of whole soil, providing results about chemical structure of soil organic matter (SOM) without the need for a chemical fractionating process; thus, allowing direct analysis of soils. Moreover, another advantage is the potential for the development of portable systems, which coul
J. Braz. Chem. Soc.. Publicado em: 2015-04
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2. Constituintes químico de Cochlospermum regium (Martius e Schrank) Pilger (Bixaceae)
The medicinal plants have been a rich source for obtaining bioactive molecules, constituting one of the most successful strategies in the discovery of novel medicines. The specie Cochlospermum regium (Martius and Schrank) Pilger (Bixaceae), popularly known as algodãozinho-do-campo is a native plant, abundant in Brazilian Cerrado. After an ethnobotanical and
Publicado em: 2009
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3. Chemical and spectroscopic characterization of organic matter in Brazilian soils / Caracterização química e espectroscópica da matéria orgânica em solos do Brasil
The importance on the study of organic matter in pedology and soil classification studies in tropical regions can be substantiated by the differential attributes: organic carbon content, degree of organic matter decomposition, and fibers content. However, quantitative and qualitative variables such as chemical fractionating of organic matter and spectroscopi
Publicado em: 2006
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4. Separation process of complex mistures / Projeto de processos de separação de sistemas complexos
The separation process of homogeneous and non ideal mixtures is a common problem in chemical industries. The complex mixture separations may happen at low pressure to prevent thermal degradation or using reactive distillation to eliminate existing azeotropes and/or in order to increase the rei ative volatility of the components to be separated. Reactive dist
Publicado em: 2005
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5. RAPID LETHAL EFFECT IN RATS OF A THIRD COMPONENT FOUND UPON FRACTIONATING THE TOXIN OF BACILLUS ANTHRACIS
Beall, Francis A. (U.S. Army Chemical Corps, Frederick, Md.), Martha J. Taylor, and Curtis B. Thorne. Rapid lethal effect in rats of a third component found upon fractionating the toxin of Bacillus anthracis. J. Bacteriol. 83:1274–1280. 1962.—Rats were found to be more susceptible to the lethal effect of toxin produced by Bacillus anthracis in vitro than
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6. Characterization of hepatitis B virus capsid particle assembly in Xenopus oocytes.
Little is known about the assembly of the 28-nm nucleocapsid or core particle of hepatitis B virus. Here we show that this assembly process can be reconstituted in Xenopus oocytes injected with a synthetic mRNA encoding the hepatitis B virus capsid protein (p21.5). Injected oocytes produce both a nonparticulate p21.5 species (free p21.5) and capsid particles