水溶液

Sodium thiosulfate and carbon disulfide were used as sulfur sources in water and absolute alcohol systems, respectively.

在水溶液体系和乙醇溶液体系中，于常温常压下不加入任何催化剂，用γ射线辐照技术可以成功制备出纳米ZnS晶体，其中硫代硫酸钠和二硫化碳分别为上述两体系的硫源。

Methods The ionization constant was determined with acid-basle titration in acetone/water solutions with different ratios, the pH at half neutralization point was regarded as pKa, the value to infinite diluted in pure water was explored and the lgP was determined with bottle-shaking method by HPLC.

方法采用酸碱滴定法测定各不同体积比的丙酮-水溶液中药物半中和点时的pH值作为药物在该体积比的丙酮-水溶液中的pKa值，再外推至纯水中药物浓度无限稀释时的pKa值；采用HPLC配合摇瓶法测定药物的分配系数。

The calculating models of mass action concentration for electrolyte aqueous chloride solutions KBr-H2O, NH4Br-H2O, and ZnBr2-H2O were founded at 298.15 K to calculate the molalities before saturation according to the ion and molecule coexistence theory and the mass action law.

建立了强电解质水溶液KBr-H2O、NH4Br-H2O和ZnBr2-H2O作用浓度的计算模型，计算了上述三个溴化物二元水溶液体系在温度为298.15K、质量摩尔浓度达到饱和前的作用浓度。

Compared the homogeneous enthalpic interaction coefficients of glycine in aqueous potassium chloride solutions with that in aqueous sodium chloride solutions and discussed different cations influence on the interaction of glycine in aqueous solutions. The dilution enthalpies of DMF in aqueous ethylene glycol, glycerol, glucose and sucrose solutions of various molalities have been determined using CSC4400 flow microcalorimetry at

本文选择N，N—二甲基甲酰胺为模型化合物，用流动量热法测定了298.15K下DMF在不同浓度的乙二醇、甘油、蔗糖和葡萄糖水溶液中的稀释焓，根据McMillan-Mayer理论，计算了其在不同溶剂组成下的同系焓相互作用系数，得到水溶液中多羟基化合物与酰胺的相互作用规律。

Results The mixture of 3 % mannitol and 3 % sucrose could better prevent nanoparticles from aggregating, the optimal lyophilization process was followed: precooled at –45 ℃ for 12 h; primary drying at –35 ℃ for 1 h; secondary drying at –20 ℃ for 12 h; finally drying at 10 ℃ for 3 h.

结果 处方中加入质量分数为3 %的甘露醇水溶液和质量分数为3 %的蔗糖水溶液作为保护剂可以较好防止纳米粒的聚集，优化的冻干工艺为-45 ℃预冻12 h，升温至-35 ℃维持1 h，再升温至-20 ℃维持12 h，最后升温至10 ℃维持3 h。

The changes of complex permittivity of pure-water,natrium oxalate,potassium permanganate and sodium chloride aqueous solution with different power were measured.It is shown that the changes of real part of the complex permittivity are all small and the imaginary part of the complex permittivity of electrolyte solution are obvious.

通过实验分别测量了纯水、草酸钠、高锰酸钾和氯化钠水溶液的复介电常数随微波测量功率改变的情况，发现4种待测物质的复介电常数实部都随微波功率改变较小，而草酸钠、高锰酸钾和氯化钠水溶液的复介电常数虚部随微波功率改变明显。

The results showed that the wheat-straw powder had little reinforcing effect on NR,but had good filling effect;when the wheat-straw powder was modified by sodium hydroxide solution,silane coupling agent KH-550 or its solution,the physical properties of wheat-straw powder/NR composite were improved;the silane coupling agent KH-550 solution possessed better modifying effect.

结果表明，小麦秸秆粉末对NR无明显补强作用，但具有良好的填充作用；采用氢氧化钠溶液、硅烷偶联剂KH-550或其水溶液对小麦秸秆粉末进行表面处理，均可改善复合材料的物理性能，其中硅烷偶联剂KH-550水溶液的效果较好。

Maximum bubble pressure method was used to determine the dynamic surface tension of aqueous solution of cetyltrimethylamonium bromide. Adsorption kinetics of CTAB at the air/water interface has been studied.

用最大气泡压力法测定了十六烷基三甲基溴化铵水溶液的动态表面张力，研究了CTAB水溶液表面吸附的动力学及其影响因素。

The surface activity and micelle behavior of the copolymers in aqueous solution were deterimned by surface tension methods.

在水溶液中，聚N-异丙基丙烯胺大分子随著温度升高会产生分子链的折叠，它的最低临界溶解温度为3236℃﹝4﹞，即在低于LCST时，它能完全溶解于水溶液中，而在LCST之上，则会产生沉淀。

In this thesis, metal clusters and colloidal 〓etal in γ-irradiated concentrated solutions of inorganic salts have been studied by using the UV-VIS absorption spectrum.

本论文首先用吸收光谱对γ-射线辐照较大浓度无机盐水溶液中金属原子簇和胶体金属及其稳定性作了研究，这对无机盐水溶液的辐射化学反应机理研究有较大的意义。

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。