水溶液

The solution of sulfuric acid was added dropwise to the reaction vessel contained 1,3-dichloro-2-propanol, sodium dichromate and water.

将硫酸水溶液滴加到1，3-二氯-2-丙醇与重铬酸钠水溶液的混合物中，在温度23~27℃的条件下搅拌反应5 h，重铬酸钠∶1，3-二氯-2-丙醇=1∶2，此条件下收率为79.6%。

In which F is the water equivalence factor of the Reagent; X is the volume, in mL, of the Reagent added after introduction of the specimen; X is the volume, in mL, of standardized Water Solution required to neutralize the unconsumed Reagent; and R is the ratio, V/25 (mL Reagent/mL Water Solution), determined from the Standardization of Water Solution for Residual Titration.

其中F是试剂与水的等价因子；X加入样品后加入的卡尔试剂体积，单位ml；X是标准水溶液中和未反应试剂所消耗的体积，单位ml，R是一个比值，V/25（单位卡尔试剂/单位标准水溶液）。

The experimental results show that the aggregation morphology of P(AMC14AB) in aqueous solution is unimolecular micelle as expected.

在水溶液中，均聚物P(AMC14AB)呈现单分子链胶束的聚集形态，具有零临界胶束浓度，从开始加入P(AMC14AB)起，水溶液中随即产生单分子链胶束，不存在Krafft温度。

Unroasted black sesame seeds were pressed and defatted with n-hexane, extracted with 80 % methanol, and separated by XAD-2 gel open column chromatography eluting with a serious of concentrations of aqueous methanol solutions (20 %, 40 % and 60 %). The 60 % methanol eluate, which contained higher content of ST compound, were collected and freeze-dried to obtain the ST extract powder.In animal experiment, we used vitamin E deficient rat model to increase oxidative stress.

试验材料为未经炒焙之泰国黑芝麻，将脱油后之芝麻粕先以80 %甲醇溶液进行萃取，经浓缩后再以XAD-2胶体进行管柱层析，以不同浓度之甲醇水溶液冲提后，收集ST含量较高之60 %甲醇水溶液区分层，行冷冻乾燥可得ST萃出物粉末。

This article describes a brand - new method as viscometry to study the principle and method of water treatment coagulant polyaluminum chloride form existing in the aqueous solution gets the character value of hydrated ion group : A2 , thereby lays foundation for understanding the form of polyaluminum chloride in the aqueous solution provides the directive information for developing efficient new kind of high effective coagulant .

介绍了一种全新的方法--粘度法研究水处理混凝剂在水溶液中的形态的原理和方法，求得水化离子团特征值A_(2)，从而为进一步摸清聚合氯化铝在水溶液中的形态奠定了基础，为开发新型高效混凝剂提供有指导意义的信息。

Its hydrophilic groups is the inside carbonyl and amine base, and its lipophilic groups is the inside hydrocarbon chain and outer methyl. PAMAM of integral generation basically has not the surface activity. Its reason is that its outer groups is acylamino groups having very strong hydrophilicity so as not to reduce the surface tension of water. PAMAM different from traditional surfactant, have not critical micelle concentration, and exist in the form of "unimolecule micelle" in water.

结果表明：半代的PAMAM水溶液的表面活性与其分子具有两亲结构有关，亲水基团是内部的羰基和胺基，亲油基团是内部的碳氢链和外层的甲基；整代的PAMAM水溶液基本上没有表面活性，其原因是其最外层基团是酰胺基，亲水性很强，不能降低水的表面张力；树状大分子与传统的表面活性剂不同，不存在临界胶束浓度，在水中是以&单分子胶束&形式存在。

Research on the solution chemistry of Al-V-Mo system in aquous solutionAccording to the calculation of solution chemistry,the solubility and existing status of Al,V and Mo in acidic and alkalic solution had been analysed in theory.The concentration logarithmic diagram of Al-V-Mo in aquous solution with different concentration and pH had been plotted,the concentration and pH on the distribution of three elements had been analysed.

铝、钒、钼水溶液化学性质的研究：采用溶液化学计算方法对铝、钒、钼体系进行了计算，从理论上分析了铝钒钼在酸性和碱性溶液中的存在状态和溶解性能，绘制了不同浓度及pH条件下铝、钒、钼水体系的优势组分图，分析了离子浓度和pH值对体系中各离子分布的影响，为水溶液中铝、钒、钼的分离技术的选择提供了基础。

The adsorption isotherms of Sodium Dodecyl Sulfonate onto wool fiber surface which experienced clean processing from an acid aqueous solution(pH3.0～3.5) by conductance method at 366K(93℃) were studied, so did the isotherms of wool adsorbing SDS from different aqueous solutions which containing various auxiliaries(containing glycol/benzalcohol and zinc sulfate).

戴丽 ，耿信鹏，林国栋采用电导法研究了366K(93℃)时经洁净处理的羊毛纤维在酸性(pH=3.0～3.5)水溶液中对十二烷基磺酸钠的吸附等温线，以及羊毛在不同助剂(含乙二醇/苯甲醇和硫酸锌)的水溶液中对SDS的吸附等温线。

Result of thermogravity analysis showed that the thermal stability of polyvinylamine chloride lowers with increasing in amination degree. Moreover, properties of dilute aqueous solutions of three types of poly chloride with different amination degree were compared by use of viscosimetric, conductometric, and potentiometric measurements. Results showed that both the electrostatic interaction of neighboring groups on the chain and the reduced viscosity of poly chloride are increased with increasing the degree of amination of poly . The equivalent conductivity is decreased with the increasing the concentration of poly chloride and increased with the increasing the amination degree of poly .

研究了聚乙烯胺盐酸盐的热稳定性和水溶液性质，发现：随着胺化度的提高，聚乙烯胺盐酸盐的对热稳定性逐步降低；聚乙烯胺盐酸盐是一种典型的聚电解质，其水溶液的pH值随平均分子量的变化并不明显，而随着聚乙烯胺胺化度的升高，pH值降低；随着聚乙烯胺盐酸盐的平均聚合度由82.3增加到201.8，它的m值（用于表征聚电解质侧链基团之间相互作用大小的常数）从5.13升高到5.58，而当聚乙烯胺盐酸盐的平均聚合度增加到311.4时，它的m值反而降低到了5.48；随着胺化度由55.65%升高到82.36%，m值由3.65提高到5.50；随着聚乙烯胺盐酸盐的平均聚合度的提高，聚乙烯胺盐酸盐的平均解离常数由7.48降低到7.26，同时随着胺化度的提高，聚乙烯胺盐酸盐的平均解离常数也由8.33降低到7.37；随着聚乙烯胺盐酸盐浓度的提高，溶液的摩尔电导率逐步降低，随着聚乙烯胺胺化度和聚合度的提高，溶液的摩尔电导率有所升高；在pH值为4左右时，聚乙烯胺盐酸盐的比浓粘度分别达到极值，而与聚合度的大小关系不大；聚乙烯胺盐酸盐的特性粘数明显高于其原料聚丙烯酰胺的特性粘数，分子量对特性粘数的影响十分明显，胺化度对特性粘数的影响并不显著。

The paper studies AM and DAC as monomer, copolymerize a new type of cationic polymer flocculants through aqueous solution polymerization, inverse emulsion polymerization and inverse microemulsion polymerization, then studies how to improve solid content by aqueous solution polymerization, ascertain the system and kinetics of inverseemulsion polymerization and technological conditions.

本论文探讨了以AM与DAC为单体，通过水溶液聚合、反相乳液聚合、反相微乳液聚合得到新型阳离子高分子絮凝剂，研究了如何提高水溶液聚合的固含量，反相乳液聚合体系的确定、动力学研究及其工艺条件等影响因素。

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。