水溶液

Chroma is the aqueous solution of 20 ％, is the viscosity when 25 ℃ 50Pa?

浓度为20％的水溶液，在25℃时的粘度为50Pa？

The condensation reaction of citral with acetone catalyzed by aqueous sodium hydroxide solution to give pseudoionone was studied in detail.

前言 丙酮和柠檬醛在氮氧比钠水溶液的催化作用「生成假性紫罗兰酮是国内外应用得较为f一泛的合成紫罗兰酮的方法。

Place a filter in the machine, and pour the solution into the coffeemaker's water chamber.

在咖啡机中放置一个过滤器，将刚配置好的醋水溶液倒入咖啡机的盛水箱中。

Optimization and modeling of boric acid extraction from colemanite in water saturated with carbon dioxide and sulphur dioxide gases.

在二氧化碳及二氧化硫饱和水溶液中从硬硼钙石提取硼酸最优化方案的研究。

The dissolution of colemanite in aqueous ammonium nitrate solutions was investigated in a batch reactor in terms of stirring speed, particle size, reaction temperature, solid-to-liquid ratio and solution concentration.

对硬硼酸钙在硝酸铵水溶液的溶解在间歇式反应器中就搅拌速度、粒径大小、反应温度、固液比和溶液的浓度等参数的影响进行了研究。

The force between electrode and current collector affected by PPy coating was also investigated.

采用原位聚合法，在阳极表面进行聚吡咯包覆以提高水溶液锂离子电池循环寿命。

The great effects of soil solution chemistry on soil colloid generation and deposition were detected.

通过对土壤胶体释放，沉积速率、解离效率和解吸因数等行为因子的定量解析，描述自然土壤胶体的释放、稳定、沉积／分配动力学和热力学行为，考察土壤水溶液pH／离子强度、胶体粒径因素对土壤胶体释放、分配沉积行为的影响。

To study the mechanism of photobleaching for monascus pigments, a monascus red pigment (resolved in water, molecular formula C19H28N2O5) is radiated with UV-light until colorless, the molecular formula of the colorlessness is determined as C14H9NO6 by infrared spectrometry, mass spectrometry and hydrogen nuclear magnetic resonance.

为了探明红曲色素光照褪色的机理，采用紫外灯照射一种红曲红色素(分子式C19H28N2O5)的水溶液至无色，经红外光谱、质谱和核磁图谱分析，鉴定其褪色后物质的分子式为C14H9NO6。

The invention adopts surfactant of amphipathic block copolymer as structure-directing agent to be dissolved in alcohol solvent, and niobium sources and aqueous solution of inorganic salts are added as structural promoter to be stirred for a certain period of time in the room temperature to form colloid; the colloid is then heated and volatilized under low temperature to remove the solvent and dried and calcined under high temperature to obtain the mesoporous columbium oxide.

本发明将双亲性嵌段高分子表面活性剂作为结构导向剂溶解于醇类溶剂中，加入铌源和无机盐类水溶液作为结构促进剂，在室温下搅拌一段时间后形成胶体，低温下加热挥发除去溶剂，经干燥、高温焙烧而成。

The operation condition of N-methyl glucamine is, columniation temperature is 30℃, detection temperature is 35℃, flow rate is 0.3mL/min, the mobile phase is methanol: water (2% trifluoroacetic acid)=5: 95 .

确定的色谱操作条件为核糖胺：柱温30℃，流速0.7mL/min，检测波长244nm，流动相甲醇：水=40：60；葡甲胺：柱温30℃，检测池温度35℃，流速0.3mL/min，流动相为甲醇：2％三氟乙酸水溶液=5：95。

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。