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SynergisticExtractionofRareEarthIonsby1phenyl3methyl4benzoyl5pyrazoloneandTrioctylphousphineOxideinParafinWaxGaoJinzha... 相似文献
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The degradation of benzidine in aqueous solution by the low temperature plasma was examined. The results showed that the concentration of medium and the value of pH have an appreciable effect on the degradation of benzidine. What is more important is that iron ions acting as a catalyst play an important role in this reaction. For exploring the degradation mechanism of benzidine, some of the intermediate products were recorded by HPLC (high performance liquid chromatography). 相似文献
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This paper describes a novel method for the degradation of eosin by using glow discharge electrolysis (GDE). The effects of various parameters on the removal efficiency were studied. It was found that the eosin degradation could be raised considerably by increasing the applied voltage and the initial concentration, or by decreasing pH of the aqueous solution. Fe^2+ ion had an evident accelerating effect on the eosin degradation. The degradation process of eosin obeyed a pseudo-first-order reaction. The relationship between the degradation rate constant k and the reaction temperature T could be expressed by Arrhenius equation with which the apparent activation energy Ea of 14.110 kJ· mol^-1 and the pre-exponential factor k0 of 2.065× 10^-1 min^-1 were obtained, too. The determination of hydroxyl radical was carried out by using N, N-dimethyl -p-nitrosoaniline (RNO) as a scavenger. The results showed that the hydroxyl radical plays an important role in the degradation process. 相似文献
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1IntroductionThebiologicaleffectsofvanadiuminvolvenormalizationofsugarlevels,particularlyinvariousenzymesystemsasaninhibitorand/oracofactor[1].Vanadiumisalsoanessentialmicroamountelementforhumanandanimals,anditspresenceintherange20~150ng/mlindrinkingwaterha… 相似文献
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