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Q9PW9 was applied to the oxidation of benzyl alcohol with hydrogen peroxide as an oxidant and high efficient catalytic performance was achieved.

以H2O2水溶液为氧化剂,在氧化苯甲醇制备苯甲醛反应中,发现该催化剂具有良好的催化活性。

Castor seeds were degreased with 3 kinds of solvents including petroleum ether, aether and methylene chloride, and ricins were extracted from the defatted castor cake with acetic acid solution. And the rat-killing activities of 3 kinds of ricins were compared in the rat-killing activity test.

方法]用石油醚、乙醚、二氯甲烷3种溶剂分别对蓖麻粗籽进行脱脂后,用醋酸水溶液从脱脂的蓖麻饼中提取蓖麻毒蛋白,通过杀鼠活性试验比较3种蓖麻粗毒蛋白的杀鼠活性。

Castor seeds were degreased with 3 kinds of solvents including petroleum ether,aether and methylene chloride,and ricins were extracted from the defatted castor cake with acetic acid solution.

方法用石油醚、乙醚、二氯甲烷3种溶剂分别对蓖麻粗籽进行脱脂后,用醋酸水溶液从脱脂的蓖麻饼中提取蓖麻毒蛋白,通过杀鼠活性试验比较3种蓖麻粗毒蛋白的杀鼠活性。

Preferential dissolution of α phase for specimens processed less than 12 hrs were revealed by using ICP-MS (inductively coupled plasma-mass spectroscopy). Hydrides having precipitated in the α-phase at the near surface peeled off into the electrolyte, and thus resulted in reduced HUE for specimens having experienced longer charging periods. In order to increase HUE, the hydrogenation promoter, Na2S2O35H2O, was added into the electrolyte to see the effect on the hydrogen absorption.

感应耦合电浆质谱分析术(inductively coupled plasma-mass spectroscopy; ICP-MS)分析发现,渗氢前一阶段(12小时)铝元素有较明显之溶释现象,此一现象肇因於渗氢作用使近表面层α-相中析出之氢化物体积逐渐扩大膨胀,最后剥落而溶於硫酸水溶液,也因此造成长时间之渗氢效率未随渗氢时间增加而增加。

The cooling crystallization and the polymorphic transition processes of L-Serine in aqueous solution were real time monitored by PVM and FBRM. The results show that at a higher temperature, the anhydrous crystals form in club-shaped habit, while the temperature of the slurry was cooled under the polymorphic transition temperature, the club-shaped anhydrous crystals would translate to the hexagonal plate-shaped monohydrate crystals.

利用PVM和FBRM对L-丝氨酸水溶液的冷却结晶过程和晶型转变现象进行的实时监测表明,在高温区析出的是棒状无水合L-丝氨酸晶体,当冷却至晶型转变温度以下时,棒状晶体逐渐转变为六角片状的水合晶体。

The ultrafine Co3O4 particles were synthesized using cobalt chloride solution as reactant by solution spray-oxidation method.

摘 要:以氯化钴水溶液为原料采用雾化氧化法制备纯度较高的超细Co3O4粒子。

Thus,it is considered as an ideal heat-transport and cold-storage medium.

四丁基溴化铵包络化合物浆是在常压下由TBAB水溶液被冷却到0~12℃时生成的,是一种理想的冷量输送和蓄冷媒体,以固液两相悬浊液的形式存在。

Comb-shaped polycarboxylic -type superplasticizers were synthesized with acrylic acid,mathacrylic acid,sodium allylsulphonateand methoxypolymethacrylatethrough aqueous copolymerization initiated by ammonium persulfate.

将甲氧基聚氧乙烯醚单甲基丙烯酸酯、丙烯酸、甲基丙烯酸和烯丙基磺酸钠进行水溶液共聚,合成了具有梳型结构的聚羧酸系高效减水剂。

08 Ns using deconvolution from the combination of the phase plane method and iterative convolution method.

通过相平面法和迭代卷积法相结合的解卷积处理,测得乙醛40%水溶液的真实荧光寿命为(7.25±0.08)ns,表明这是一种采用纳秒量级的仪器测量纳秒甚至亚纳秒荧光寿命的有效方法

The details are summarized as follows: 1.γ-irradiation is extended to control the morphology of microcrystals. In our experiments, copper acetate aqueous solution, a simple reaction system, is used at room temperature to prepare pure hexapod-shaped Cu〓O microcrystals, in which a buffer pair is in-situ formed to adjust the acidity of the reaction solution. Some important information on intermediate is obtained by changing the reaction parameter, which favors to reveal the inherent growth habit of Cu〓O.

发展了γ-射线辐照合成法对微晶的形貌的控制,在常温常压下从一个简单的反应体系——醋酸铜水溶液出发,通过辐照过程中原位产生的醋酸-醋酸根缓冲对的自发调节作用,控制反应体系的酸度从而合成得到了纯相的六足状氧化亚铜微晶;并通过改变反应参数,获得了中间体的信息,从而为揭示氧化亚铜的固有生长习性提供了条件。

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本文主要展示了当今影响环境的一个重要因素——教育。

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