共炭化作用的机理主要为共炭化剂的短烷基侧链转移和在热解及聚合时生成氢自由基的氢转移作用。
So, the co-carbonization mechanism mainly involves the short alkyl side chain and hydrogen trans-fer reaction between LDOHF and MCTP during pyrolysis and condensation of LDOHF.
二氢杨梅素抗氧化活性优异,其作用机制是通过螯合金属离子,从而消除其对自由基氧化的催化作用。
Dihydromyricetin has excellent antioxidant activity. Its antioxidant activity embodies by chelating metal ion and clear the catalysis to free radical oxidation.
利用2',7'二氯双氢荧光素二乙酸酯在共聚焦显微镜下测定内皮中的氧自由基生成量。
The production of oxygen-derived free radicals in the endothelium was measured with 2', 7'-dichlorodihydrofluorescein diacetate using confocal microscopy.
氢通过氧化物分解为自由基的过程,可被各种催化剂加速,特别是过渡金属。
Hydroperoxide decomposition into radicals is accelerated by various catalysts, notable the transition metals.
本文用自由基捕捉剂与esr相结合的方法系统研究了各种取代苯胺与二苯酮光化夺氢反应中的活泼自由基。
Active free radicals in the photochemical hydrogen abstraction reaction between benzophenone and aromatic amines have been studied systematically by combination of spin trapping reagents and ESR.
动力学分析表明,脂肪氢脱除反应的活化能较低,与反应体系中存在大量自由基有关;
The kinetic analysis illustrated that the removal of aliphatic hydrogen had low activation energy, which relating to lots of free radicals in the thermal reaction system.
血管内皮细胞体外试验发现白藜芦醇能中和自由基,降低乳酸去氢脢释出,有保护血管内皮细胞的作用。
Endothelium in vitro assays found that resveratrol could neutralize free radicals, lower the liberation of lactate dehydrogenase and protect endothelium.
在DMF-四乙基溴化铵(TEAB)质子惰性介质中,马蔺子素连续两步单电子还原生成相应氢醌阴离子,无中间体半醌自由基的化学反应发生。
In DMF tetraethyl ammonium bromide(TEAB) media, the reduction of irisquinone was two successive single electron processes without the chemical reaction of the free radical semiquinone.
此外,探索通过氧化或者自由基引发,对甲苯类化合物的饱和氢活化进行苄基化反应。
Furthermore, benzylation of methyl-substituted benzene by activation of saturated hydrogen through the use of oxidation or free radical initiation has been developed.
用途:二氢杨梅素具有清除自由基、抗氧化等多种功效,还具有解除醇中毒、预防酒精肝、脂肪肝等作用,是保肝护肝,解酒醒酒的良品。
Usage:Dihydromyricetin can be used to clear the free radical. It also have the effect of anti-oxidation, preventing the forming of the thrombus, anti-tumour.
用途:二氢杨梅素具有清除自由基、抗氧化等多种功效,还具有解除醇中毒、预防酒精肝、脂肪肝等作用,是保肝护肝,解酒醒酒的良品。
Usage:Dihydromyricetin can be used to clear the free radical. It also have the effect of anti-oxidation, preventing the forming of the thrombus, anti-tumour.
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