水溶液

The mechanism of dioxygen oxidation of NTS to DNS in alkali solution under mild condition was inquired into. The result showed that the key step in the preparation of DNS from NTS was the formation of 4-nitro-2-sulfobenzyl anion as a result ionization of NTS in strong alkali and then oxidization to 4-nitro-2sulfobenzyl radical by activated dioxygen.

探讨了在温和条件下于碱的水溶液中氧气液相氧化4-硝基甲苯-2-磺酸制取4，4'-二硝基二苯乙烯-2，2'-二磺酸的反应机理，发现4-硝基甲苯-2-磺酸在碱作用下发生离子化生成4-硝基-2-磺酸基苄基阴离子，然后被活化的分子氧氧化成4-硝基-2-磺酸基苄基自由基是反应的关键步骤。

With the size minishing, the leaching temperature increases, leaching-time become longer, the increasing of aqueous solution concentration and actively treating of medical stone, leaching performance of elements of medical stone mineral will be improved.

随着矿物颗粒减小、溶出时间延长以及水溶液浓度的增加等，麦饭石矿物中元素的溶出能力将会得到提高。

The preparation of active carbon was studied through steeping rice hull in ZnCl_2 solution and then further carbonization and activation in a muffle furnace under high temperature of 400℃～650℃.

首先用氯化锌水溶液预浸渍稻壳，然后在马福炉中400~650℃下进一步炭化活化制取活性炭。

The alumina supporters with 4-7mm were impregnated with an aqueous solution of RE, Sr, Cu and Zr acetate mixture, and then were calcined in a muffle furnace in air at 800-1000℃ for several hours.

将φ4—7毫米颗粒状氧化铝载体浸渍于RE、Sr、Cu、Zr的醋酸盐混合物水溶液，在800—1000℃空气气氛下于马弗炉中煅烧数小时。

When the doses are between 10 and 1 000 kGy,the main light hydrocarbons produced by radiation degradation of N,N-diethyl hydroxylamine are methane, ethane, ethene, propane and n -butane.

结果表明：当吸收剂量为10～1000kGy时，N，N 二乙基羟胺水溶液辐解产生的气态烃类主要有甲烷、乙烷、乙烯、丙烷和正丁烷。

Xanthan gum can be widely used in more than twenty industrial fields,such as food, pharmaceutical,fine chemical,agriculture,oil drilling and exploitation,and so on.

这种特殊的结构决定了其水溶液的特殊性质，因而可以广泛应用于食品、医药、精细化工、农业、石油钻采等领域。

It was found that the diblock copolypeptide could be self-assembled to form vesicles in water.

研究结果表明，双嵌段共聚多肽在水溶液中可自组装形成囊泡。

First, this paper reports measurements of surface tension of ionic liquid EMIES (1-ethyl-3-methylimidazolium ethyl sulfate) using the forced bubble method at 278.15 to 323.15 K and densities of EMIES using Westphal balance at 278.15 to

为此，本文以廉价工业原料合成的硫酸乙酯—1—甲基—3—乙基咪唑EMIES和对水、空气都稳定的离子液体BMIBF_4为主要对象，使用密度法和最大气泡法等实验方法对这两种离子液体及其EMIES的水溶液的性质作了如下研究工作：在278.15—338.15K范围内用Westphal天平测定了EMIES和BMIBF_4的密度，用最大气泡法测定了纯离子液体EMIES和BMIB_4的表面张力。

The silver nanoparticles were characterized by using X-ray diffraction,energy dispersive spectrometer and scanning electron microscope.

在70℃时采用聚乙烯吡咯烷酮和氢氧化钠的混合水溶液，利用葡萄糖还原硝酸银制备了银纳米颗粒。

Using oleanolic acid as a standard substance, assured detective wavelength of TAS was 545 nm and standard curve equation was Y=-0.0294+0.0485X, the average recovery was 98.96% with RSD of 2.71%.

在单因子实验的基础上，采用L_9(3~4)正交实验确定了水溶液提取TAS的适宜工艺参数。

This paper demonstrated the impact on the environment today, an important factor is Education.

本文主要展示了当今影响环境的一个重要因素——教育。

Article 16 The power to interpret these Procedures shall remain with the Ministry of Agriculture and CAA.

第十六条本程序由农业部、国家认证认可监督管理委员会负责解释。