水溶液

This investigation describes the one step preparation of potassium carbonate by electrolysis of potassium chloride solution in the electrolyzers with various kinds of Nafion membranes.

采用添加KHCO_3的阴极液循环法，由KCl水溶液的离子膜电解，一次得到K_2CO_3。试验中对Nafion膜的导电度进行了测定，探讨了碱金属阳离子在离子膜中的行为。

Simultaneously uses the existing experimental condition, to the process of the electrolysis of watery potassium carbonate, we has done the further research of the power input, the initial temperature and the electrolysis time how to influence the system calorimetry coefficient.

根据现有的条件，本研究又对电解碳酸钾水溶液过程中的电解输入功率、电解起始温度和电解持续时间对系统k值的影响作了初步的探讨。

The mathematical models of the dynamics of the mass transfer based on the Nernst-Planck equation were established from which it is found that the different characteristics of the water decomposition between the cation and the anion exchange membranes or resins, is owing to the different potential gradient on the two kind of ion-exchange interfaces, which is further because of the difference between the structure and performance of the different membranes or resins, and is also because of the difference between transfer numbers of cation and anion ions.

根据所建立的传质数学模型方程获知在阴阳膜／树脂表面与水接触的界面层中发生的水解离的差异性，是在于离子交换界面电势梯度的差异，而这种差异又与膜与树脂的结构、性能以及阴阳离子在水溶液中的迁移数的差异有关。

The dissolubility of PPLA in water was (2.16～4.32)×10－2 mg·mL－1 according to eye judgment. The critical micelle concentration was 2.16×10－2 mg·mL－1 obtained from a fluorospectrophotometer. The self-assembled aggregates of PPLA in water were nanoscale spheres observed by a transmission electron microscope. The particle size and zeta potential tests by dynamic light scattering revealed that during preparation, the ratio of hydrophilicity/hydrophobicity, the aqueous medium and the pH had great influences; while dilution, freezing and pH change to basic condition had no effect after preparation, but pH change to acidic condition made the nanoparticles precipitate.

目测法得到其溶解度为(2.16～4.32)×10－2 mg·mL－1；荧光法得到聚合物的临界胶束浓度为1.12×10－3 mg·mL－1；透射电子显微镜观察显示该聚合物在水中的自组装聚集体为纳米级球形；动态激光光散射测试微球的粒径和Zeta电位发现，在微球的制备过程中，聚合物的亲/疏水性比例、水相介质及水溶液的pH值对它影响显著；而制备后，稀释和冷冻对它无显著影响，改变微球的环境pH值至酸性，出现聚集，至碱性无影响。

To make the test most realistic an additional pre-conditioning is applied to the samples to be tested.

该洪水测试utilises 1板条水溶液控制在预先确定的温度，这是一个适用于使用在3.5范围内的压力介质速度喷嘴4.5巴。

The concentration of dextran solution was measured by testing its turbidity value using ethanol as the precipitant.

以乙醇为沉淀剂，测定水溶液中葡聚糖溶液浊度的方法测定葡聚糖的浓度。

Once nucleate boiling is initiated, heat transfer in propanol/water mixtures was shown to becontrolled mainly by the mass diffusion effect. In the concentration range studied in this work, the addition of SDS in water results in insignificant variation of dynamic contact angles.

沸腾一旦起始后，正丙醇水溶液比纯水的核沸腾热传速率小，此一组成的影响与双成分混合物的汽-液平衡和热、质传的物理特性有关，可以质量扩散效应描述。

Gingko leaf and its extractive is microwave-aided fast hydrolyzed in ethanol, propyl alcohol, butyl alcohol, acetone and other organic solvent as digest with certain amount of phosphoric acid, sulfuric acid or hydrochloric acid aqua added.

本方法以银杏叶及其提取物为原料，以乙醇、正丙醇、正丁醇及其丙酮等有机溶剂加入一定量的磷酸、硫酸、盐酸水溶液作为水解液，经微波辅助快速水解。

The non linear regression applied to relation of the proton change number of acid with the proton concentration may improve the precision of pKa determination.

它首先牵涉到有机酸在溶剂中的电离形式[1]，然后是电离平衡常数中活度系数的测定[2]，再者是非水质子溶剂或有机-水溶液中质子浓度的精确测定。

Prussian blue and its derivates have many excellent characteristics like electrochemistry reversibility, high stability, low cost and easy synthesis.

普鲁士蓝及其衍生物的三维网状结构在无机结构中是独特的，具有沸石特性，能在水溶液中很快地与碱金属离子发生交换。

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。