نتایج جستجو برای: isopropanol
تعداد نتایج: 1460 فیلتر نتایج به سال:
Drosophila mojavensis adults, which breed and feed on necrotic cacti, show an increase in longevity when exposed to atmospheric ethanol. The increase in longevity is accompanied by retention of mature ovarioles and is independent of diet. Differences in longevity among strains from different localities were detected for females. Strains from Arizona and Sonora, Mexico, showed the greatest incre...
The rate constants and activation parameters are reported for the oxidation of methanol, ethanol, propanol, and isopropanol by 2,2’-bipyridyl chromium peroxide (BPCP) over the temperature range of 35° to 50°C.
The hydrodehalogenation of polychlorinated phenyls and biphenyls (PCBs), catalysed by palladium N-heterocyclic carbene complexes, proceeds with excellent yields, at very low catalyst loadings and at room temperature, using isopropanol as the hydrogen source and NaOH as the base.
We investigated a new procedure in which silicic acid column chromatography and fluorometry are used to assay plasma vitamin A. Using tntium-labeled vitamin A acetate and vitamin A alcohol as radioactive stan. dards, we identified two fluorescent components in plasma extracts chromatographed on silicic acid columns. One unidentified fluorescent component was eluted first with hexane or petroleu...
Capillary electrophoretic profiling of hair fractions obtained by 0.25 M HCl treatment of the tissue with subsequent extraction of the solubilized fraction with chloroform-isopropanol (9:1, v/v) revealed clear differences between hair obtained from alopecia areata affected laboratory rats (both in hair obtained from non-affected areas and hair growing on once hairless patches) and controls. Dif...
A purified alkaline thermo-tolerant bacterial lipase from Bacillus cereus MTCC 8372 was immobilized on a Poly (MAc-co-DMA-cl-MBAm) hydrogel. The hydrogel showed approximately 94% binding capacity for lipase. The immobilized lipase (2.36 IU) was used to achieve esterification ofmyristic acid and isopropanol in n-heptane at 65 degrees C under continuous shaking. The myristic acid and isopropanol ...
Main objective of this present study was to prepare and investigate the different pseudo polymorphic forms of gemifloxacin using Powder X-Ray Diffraction analysis (PXRD), Scanning Electron Microscopy (SEM), Differential Scanning Calorimetry (DSC), Fourier Transform Infrared Spectrometry (FTIR) and dissolution studies. For this purpose, crystals of gemifloxacin (G-1 to G-4) were obtained by solv...
BACKGROUND Blindness is caused by eye pathogens that include a free-living protist (Acanthamoeba castellanii, A. byersi, and/or other Acanthamoeba spp.), a fungus (Fusarium solani), and a bacterium (Chlamydia trachomatis). Hand-eye contact is likely a contributor to the spread of these pathogens, and so hand washing with soap and water or alcohol-based hand sanitizers (when water is not availab...
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