In synthesizing process, the optimum quanta of hydrogen peroxide solution and glacial acetic acid which affect epoxide number were determined. 对合成过程中影响环氧值的两个重要条件:即双氧水和冰醋酸的用量做了大量实验,确定了最佳条件。
Then ozonic-hydrogen peroxide bleaching were carried out and the results show that the higher of Kappa number, the poor of the delignification selectivity and the lower of brightness rising. 然后经过臭氧-过氧化氢漂白,结果表明:卡伯值越高,脱木质素选择性越差,白度上升值越低。
The vacuum was helpful in inhibition of its oxidation, and redounded to the stability of peroxide value and iodine number. 真空有利于抑制烤鳗油氧化,防止过氧化值和碘价的变化;
The decreasing of peroxide value indicated decomposing of hydroperoxides, then produced a number of volatile compounds, which accord with the increasing of total peak area of volatile compounds. 过氧化值的下降意味着氢过氧化物的分解,进而形成大量的挥发物质,这与挥发物总峰面积增大的结论相符合。
Hydrogen peroxide ( H2O2), which can generate a large number of free radicals, is often used as a cell oxidative stress revulsant. 过氧化氢(hydrogenperoxide,H2O2)能产生大量自由基,常被用作细胞氧化应激诱导剂。