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The process affecting the polymer morphology, such as the kind and amount of dispersant, the amount of functional monomer, the Cu2+ concentration and the composition of external aqueous phase, were investigated in detail.

并对影响微球形态的工艺条件,如外水相中分散剂的种类、用量、功能单体的用量、内水相中金属离子的浓度、外水相的整体组成等进行了详细的研究。

So, it is very important to study on exist as, change disciplinarian, influence causation of metal ions in apple juice and how to effectively remove them for ensuring the nutrition and safety, that is the key of improving fruit juice quality , increasing the export quantum of fruit juice and improving the added value of fruit juice.

所以,研究果汁中金属离子的存在状态、变化规律以及对果汁品质影响的原因和如何有效的去除,并保证果汁的营养成分和食用的安全性,是提高果汁质量、增加果汁出口量和提升果汁附加值的关键之一。

During the study, many factors, such as: density of H2SO4 solution, reaction ratio of materials, reaction temperature and time, are studied how to effect the extraction yield of Li2O. After these studies, the optimal conditions are summarized: 50% H2SO4 solution and lepidolite powder which has been grounded to a particle size of 80~100microns, react at 2:1ratio,120℃ temp for 8h~10h.

在此过程中主要探索了硫酸水溶液的浓度对氧化锂提取率的影响,以及硫酸溶液与云母粉的反应配比、反应温度、反应时间对提取率的影响;研究了提取液pH值的调节对溶液中金属离子的影响。

A surface-modified adsorbent is a support bearing at the surface of a chemically bonded "monomolecular" layer of adsorbing groups, which provides fast kinetics of the recovery and elution of the molecules and ions under study.5–9 SPE by use of alkyl-bonded silica gels has been widely applied in the environmental analysis of polyaromatic hydrocarbons, pesticides, substances of biochemical origin and other organic compounds.

表面改性吸附剂是一种载体,它负载在一层化学键合的单分子吸附性官能团的表层,为所研究的分子和离子的回收和洗脱提供了快速动力。使用含烷基的硅胶的SPE技术已经被广泛应用到芳烃聚合物、农药、生物成因物质以及其他有机化合物的环境分析中。

That is less copper anion in the environment. PASP has the effect of corrosion inhibition in hydrochloric acid solution. In addition the potation of cathode summit current turned negative as increasing PASP concentration, and the potential of anode summit current turned positive, it can constrain the corrosion of copper. That is to say PASP is a mixed corrosion inhibitor and can constrain the corrosion of copper surface.

循环伏安测试结果表明: PASP的加入同时抑制了铜表面的阴阳极反应,使阴极峰和阳极峰电流都减弱,说明此环境中的铜离子的含量较少,PASP对铜在盐酸中有缓蚀作用;另外阴极峰电位随着PASP添加浓度的增大而依次变负,而阳极峰电位依次变正,抑制了铜的腐蚀,说明PASP是混合型缓蚀剂,有效地阻止了铜表面的腐蚀。

Compared to the pure complex powder, the excitation spectra of the rare earth complex in the assemblies show blue shifts while the emission spectra show fewer split peaks.

在紫外光激发下,组装体发出相应稀土离子的特征谱线;和纯配合物粉末相比,其激发光谱发生一定的蓝移,而其发射光谱则表现出较少的劈裂;由于基质的保护作用,组装体中的配合物具有较高的荧光寿命和发光效率。

Within this study, we found some interesting results, for example, the type of ring opening mode of methylene cyclopropyl ketones was changed from distal to proximal under the catalysis of palladium with the addition of two equivalents of sodium iodide.

我们发现了一个非常有趣的现象:亚甲基环丙烷基酮的开环方式可以得到有效的调控:在没有外加卤离子的情况下,开环方式为distal断裂,从而得到了4—氢吡喃化合物,而在两当量的碘化钠的存在下却发生了proximal断裂,从而能够得到2,4—双取代的呋喃。

From the previous experimental results, we can know the NafionTM mix PR structure can maintain a constant voltage for the sensing layer of REFET and prevent it from the disturbance of ions.

从过去的实验结果可知道,NafionTM混合Polymer的结构具有使REFET的感测层维持在一个固定的电位且保护它不受离子的干扰的效果。

Because of the adulteration of rare earth ion and the lamellar structure of the calcium and titanium mine, the material has lower heat conductivity and higher coefficient of thermal expansion compared to the zirconium oxide which is stabilized by 7-8% yttrium oxide.

由于稀土离子的掺杂及其自身的层状钙钛矿结构,该材料与目前普遍使用的7~8%氧化钇稳定的氧化锆相比具有更低的热导率和更高的热膨胀系数。

It is pointed out that the main tendency of this study is gradually turned from the traditional solution theory or semiempirical model to statistical mechanics theory , from primitive to nonprimitive electrolyte model, in o rder to estab lish the mo lecu lar thermodynam ic model at h igh level,which can predict them acroscopic thermodynamic properties of electrolyte solution system from the microscopic molecular and ionic parameters.

指出电解质溶液的研究已逐渐从经典的溶液理论和半经验模型转向用统计力学理论进行研究,从电解质的原始模型转向非原始模型。从分子和离子的微观参数出发建立高水平的热力学理论模型,以预测电解质溶液体系的宏观热力学性质,是发展的必然趋势。

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推荐网络例句

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候,里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色,卵在发育96h后卵基本全部孵化。

There was a conflict between plebs and patricians in ancient Rome in 494BC.

在公元前494年,罗马发生了一次平民反对贵族的斗争。