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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 73 for “"Carbon tetrachloride"”.
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Cobalamin-Enhanced Anaerobic Biotransformation of Carbon Tetrachloride
This study demonstrated that adding catalytic amounts of cobalamins improves biotransformation of high concentrations of CT by increasing the rate and minimizing the accumulation of hazardous products. Relatively low adsorption of CN-Cbl in sand indicated that adding cobalamins to groundwater for …
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Cobalamin-Enhanced Anaerobic Biotransformation of Carbon Tetrachloride
… bioremediation of groundwaters contaminated with carbon tetrachloride (CT) is a promising alternative, but accumulation of hazardous metabolites and the inhibition of biotransformation when CT is present in the milligram per liter range has limited its application. The purpose of this study was to …
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DEGRADATION OF CARBON TETRACHLORIDE USING HYDROPHOBIC GREEN RUST
… The kinetics of GR reductive dechlorination of carbon tetrachloride (CT) was investigated. CT at high concentrations was degraded at high percentages for GRBIS-3, 88.5% and GRSNLS-5, 97.6%. Their reactions were found to follow pseudo first-order kinetics with respect to CT with rate constants of …
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Semi-insulating indium phosphide grown with a carbon tetrachloride doping source
Made available in DSpace on 2011-05-07T14:21:31Z (GMT). No. of bitstreams: 2 license.txt: 4922 bytes, checksum: 910b249b4beec47e7ab768910c8f966f (MD5) 9625135.pdf: 3807051 bytes, checksum: 7bf8cacdaf2de061db1c74c508219314 (MD5) Previous issue date: 1996
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Characterization of Magnetite Nanoparticle Reactivity in the Presence of Carbon Tetrachloride
… organic compounds. Of these compounds, carbon tetrachloride (CT) is one of the most frequently encountered due to its past, widespread industrial use. In anaerobic groundwater environments, CT has been shown to be susceptible to degradation by both biotic and abiotic processes. One …
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Toxicological studies in yeast species : production of cytochrome P450 and evaluation of carbon tetrachloride toxicity
… testing putative toxic and genotoxic compounds. Carbon tetrachloride (CCÍ4) was used as a model compound. Exposure of cells of Schizosaccharomyces pombe and Saccharomyces cerevisiae to carbon tetrachloride showed that the compound was toxic to the cells in a dose-dependent manner. Sch. pombe was …
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Effect of 400-kilocycle insonation on the extraction of acetone from carbon tetrachloride with water
no abstract provided by author
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Carbon doping of compound semiconductor epitaxial layers grown by metalorganic chemical vapor deposition using carbon tetrachloride
… in high purity H$\sb2$ has been used as a carbon dopant source for $\rm Al\sb{x}Ga\sb{1-x}As$ grown by low pressure metalorganic chemical vapor deposition (MOCVD). To understand the mechanism for carbon incorporation from CCl$\sb4$ doping and to provide experimental parameters for the …
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Use of a non-inflammable solvent mixture for the extraction of tung oil
… were performed with ethyl alcohol, benzene, carbon tetrachloride, chloroform, hexane, and toluene. Of the flammable solvents, benzene extracted the most oil, 51.7 per cent. Hexane was next in oil extraction with 50.8 per cent. In the non-inflammable class, carbon tetrachloride extracted the …
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The Orotic Aciduria of Chemical Hepatotoxicity (Liver Disease, Alcohol, Galactosamine)
… in rats: chemical damage to the liver by (1) carbon tetrachloride, (2) ethanol, (3) galactosamine, (4) partial removal of the liver, and (5) meal feeding by growing animals. Orotic acid excretion also depends upon: the dietary lysine/arginine ratio, and blood ammonia concentrations. Carbon …
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Radiolysis of the Extract from the Sawdust of the Ponderosa Pine
… chromatography on silica gel, using chloroform-carbon tetrachloride (1:1) as the elutant and then 10-20-50-80% ethanol in the chloroform- carbon tetrachloride mixture and finally 100% ethanol. Ten fractions were obtained from each sample and these were each tested on the bacteria. Results …
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Potential use of ultrasound in chemical monitoring
… aqueous solutions of low ppm concentrations of carbon tetrachloride, chloroform, and trichloroethylene after one minute sonication. The increases of Cl{dollar}\sp-{dollar} were accompanied by increases in conductivity and decreases of pH. Ion chromatography of solutions before and after …
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Effect of pumpkin seed (cucurbita pepo) protein isolate on the antioxidant enzymes in ccl4-induced liver injury in low-protein fed rats
… (AST) and alkaline phosphatase (ALP) against carbon tetrachloride (CCU)-induced acute liver injury in low-protein fed rats were investigated. A group of male Sprague-Dawley rats which were maintained on a low-protein diet for five days were divided into three subgroups. Two subgroups were …
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Condensation of a vapor in the presence of a non-condensing gas
… ethanol in the presence of nitrogen, helium, and carbon dioxide, and of carbon tetrachloride in the presence of nitrogen and carbon dioxide were made on a vertical plate. The results were satisfactorily correlated in terms of the Schmidt number and a modified Grashof number as based on an analogy …
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Diffusion of organic liquids : pressure, temperature studies
… are reported for the liquids; benzene, carbon tetrachloride and cyclohexane. These data have been used to test some current theories of transport.
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Diffusion of organic liquids : pressure, temperature studies
… are reported for the liquids; benzene, carbon tetrachloride and cyclohexane. These data have been used to test some current theories of transport.
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Effects of Ethanol and Liver Disease on the Vitamin-A Status of Rats and Humans
… in models without liver disease development; carbon tetrachloride (CCl$\sb4$) inhalation and dietary phenobarbitol was used in models of liver disease. A mixed group of human alcoholics was also studied.
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