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After the carboxymethylation,the solubility of pachyman in the water was significantly increased,its β-D-glucan characteristic absorption peak at 890 cm-1 became weak obviously,and its methylene vibration absorption peak and CO antisymmetrical stretch vibration absorption peak appeared at 1 333 and 1 606 cm-1 respectively,which indicated that the carboxymethylation succeeded.The analysis of AFM results showed that CMP molecules existed in different morphology under different solution conditions,and that the concentration,ionic strength and solvent physical chemistry characteristics of polysaccharide solution had effects on the CMP chains conformation and the action mode between different molecular chains.The phenomena were considered to be related to hydrogen bond association and intramolecular and intermolecular electrostatic interactions of CMP.

结果表明:经过羧甲基修饰,茯苓多糖在水中的溶解性显著增加,890 cm-1 处的β-D-葡聚糖特征吸收峰明显减弱,1 333 cm-1 处出现次甲基振动吸收峰,1 606 cm-1 处出现〖JG(〗C〖ZJLX,Y〗O〖JG)〗非对称伸缩振动吸收峰,表明羧甲基化成功;原子力显微镜分析表明:在不同溶液条件下,CMP分子以不同形态存在,多糖溶液的浓度、离子强度及溶剂的物化特性均能对CMP的分子链构象及链间相互作用形式产生影响,推测可能与CMP分子内、分子间的氢键缔合及静电作用有关,CMP分子与云母基底间的吸附及静电作用也会对CMP的分子链构象及图像质量产生影响。

The liquid diffusion coefficient is an extremely important parameter in mass-transfer processes. Benzylpenicillin potassium, benzylpenicillin sodium, ascorbic acid, amino acids and amino acid hydrochlorides are used widely as medicine and nutriment.

液相扩散系数是传质过程中非常重要的参数,青霉素、抗坏血酸、氨基酸及氨基酸盐酸盐作为广泛应用的医用及营养药物,对其在水中的扩散。。。

The existence characteristic, structure transformation and the characteristic of water before and after adding nanometer particles will be measured, the variety of nanometer particles and causable environment effect will be studied.

测定投加纳米颗粒物前后纳米颗粒物的存在特征、结构变化和水体理化指标,研究纳米颗粒物在水中的变化及引起的环境效应。

The result shows that the spatial distribution of coalescent filler has great effect on the coalescent removal of oil.

同时,废水中还含有大量的表面活性剂、聚合物、碱等物质,这些物质的存在又进一步增加了原油在水中的稳定性,使得现有的重力除油设施除油效率很低。

Within the operating range in this study, the oxygen transfer coefficient using enriched oxygen aeration is 1.3 times higher than that in conventional oxygenic aeration.

采用富氧膜法制备O2体积浓度为28.8%的富氧气作为曝气源,研究了富氧气在水中的传质特性,考察了富氧气曝气对有机物降解的效果,研究了污水浓度、曝气量等因素对生物反应器效能的影响。

The results of analysis showed that the DBD was more suitable for oxidizing carbon black than RF. Because carbon black oxidized by DBD had a lot of single oxygenous functional group,carboxyl,which could be used to graft antitumour medicine and could be well dispersed in water.

通过对氧化后炭黑性能的分析测试得出以下结论:DBD 工艺优于RF 工艺,经DBD 氧化改性的纳米炭黑含氧官能团多,官能团单一,在水中的分散稳定性良好,为高选择性地进行药物接枝反应创造了条件。

Based on the characterizations such as SEM、EDS、TG-DTA、FTIR、DRS、XRD、XPS、Zeta potential and Particle size analysis, The effect of preparation conditions including washing and calcining temperature on the photocatalytic activity of N-doped photocatalysists was discussed through the photodegradation of styphnic acid (2,4,6-Trintroresorcinol).

对改性后的催化剂进行了SEM、EDS、TG-DTA、FTIR、DRS、XRD、XPS、Zeta电位测定及粒度测定等表征,研究改性催化剂的微观形貌、元素组成、化学结构、热稳定性、吸光范围、晶型、表面电荷以及在水中的粒径分布。

The CoFe2O4/TiO2 magnetic nano-photocatalysts has fairly good magnetic property. The X-ray diffraction, transmission electron microscopy and ultraviolet-visible technique were used to analyze the phase structure, size and spectrum response scope of the samples. The XRD indicated the anatase TiO2 was formed when TCF modified by plasma. The size of CoFe2O4 particles was about 20 nm. The diameter of CoFe2O4/TiO2 particles is in the range of 30~40 nm. So the shell of TiO2 enwraps closely around the core and the thickness is in the range of 10~20 nm.

运用VSM技术对样品磁性能进行研究,结果表明:等离子体修饰后的复合材料仍具有较高的饱和磁化强度,可在外加磁场作用下实现催化剂在水中的分离与回收;样品的XRD、TEM和UV-Vis分析测试结果表明:等离子体修饰后的复合材料有锐钛矿型TiO2存在;TEM谱图显示磁核CoFe2O4的平均粒径约为20 nm,TCF复合粒子的粒径约为30~40 nm,TiO2包覆层的厚度为10~20 nm。

Because dispersed state of bentonite in the water was changed by ammonium molybdate, its adsorptive capability and ionic exchange ability were improved, and its color removal rate from the wastewater of basic blue dye was 96.53%.

由于钼酸铵聚合体的引入改变了膨润土在水中的分散状态,增强了其对污染物的吸附和离子交换能力,处理后印染废水的脱色率可达96.53%。

Most of water-soluble cyanine dyes have -SO3H and –COOH in their molecules, which will influence the biomolecules' functional characters. A new kind of water-soluble cyanine dyes with several cations in molecules were designed and synthesized, preparation conditions of intermediate and dyes were researched and optimized, the yield of dye is 25%. The novel kind of cyanine dye are water-soluble , spectrum characters was researched , all the dyes were charactered by 1H NMR and TOF-MS, spectrum in different solvent of novel dyes were focused on, one of the kind dyes show higher fluorescence quantum yield than the result reported. Because of several cations in the structure, it is promising when used in DNA assay and other bio-assay field.

大多数水溶性的菁类荧光染料分子结构中都带有-SO3H和-COOH等基团,过多的阴离子的引入容易造成对生物分子的功能属性的影响,本论文设计并合成了分子结构中带有多个正电荷的水溶性的一类新型菁染料,考察并且研究了中间体和染料的合成条件,最终的目标产物产率达到25%,染料通过了质谱和核磁的表征,新型的染料具有良好的水溶性,研究了新染料在多种溶剂的的光谱性质,其中一种染料的在水中的荧光量子产率比文献报道得到了提高,由于富集了正电荷,这类菁染料在DNA标记等生物中有一定应用前景。

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