查询词典 UV

UV and HPLC were used to determine the concentrations of phenol red and cilnidipine.

结果如下：西尼地平在十二指肠、空肠、回肠、结肠的吸收速率分别为2.05±0.01、1.95±0.01、1.96±0.01、1.82±0.01h~(-1；不同药物浓度5、10、15μg·mL~(-1)时在各肠段的吸收速率常数分别为2.25±0.01、2.24±0.01、2.24±0.01h~(-1；不同pH值6.4、7.2、7.9时分别为2.23±0.01、2.24±0.01、2.21±0.21h~

Methods The intestine in rats was cannulated for in situ perfusation. UV and HPLC were used to determine the concentrations of phenol red and cilnidipine,respectively.

采用大鼠在体肠灌流实验装置，利用紫外-可见分光光度法和HPLC法分别测定酚红和西尼地平的含量。

The interaction between CaA and Cu and influence of ethylenediaminetetraacetic acid,solvent and pH on the interaction were also studied to help elucidate the detailed prooxidant mechanism using UV-visible spectroscopy, demonstrating that it is CaA phenolate anion,instead of the parent molecule,chelates with Cu as a bidentate ligand,hence facilitating intramolecular electron transfer between CaA and Cu.

可见分光光度计研究了CaA和Cu的相互作用以及EDTA、溶剂、pH对这种相互作用的影响，证实了CaA本身没有与Cu螯合，而是咖啡酸酚氧负离子作为双齿配体与Cu进行螯合，形成的络合物有利于分子内电子转移。

The most parts of thesis as follows:1. Five symmetrical intra-molecular charge transfer oligomeric phenylene vinylene light emitting materials were designed and synthesized using oligomeric phenylene vinylene as a framework.2. The structures of target molecule were characterized by ~1HNMR,~(13)CNMR, IR, MS and element analysis.3. In order to study the influence of the location and numbers of electron-donor and electron-acceptor on their photoelectric performance by changing length of OPV chain, the UV spectra and fluorescence spectra of target compounds has been compared. We have researched into main factors effecting on material emitting red-shift; organic electroluminescence device was prepared using the compound P4. The capability of eletroluminescence was researched.4. The photoelectric properties of P4 was explained by quantum chemical calculation (the Gaussian 98 quantum chemistry program). It is greatly contributed know the whole process of charge transfer to guide the design of red emitters.

本文研究的内容主要包括以下部分：(1)设计并合成5个对称的以齐聚苯乙烯类为骨架的分子内电荷转移型齐聚苯乙烯类发光材料；(2)通过IR，MS，~1H-NMR，~(13)C-NMR和元素分析对所合成的目标化合物进行表征；(3)通过对目标化合物的紫外光谱和荧光光谱比较分析，研究改变OPV的长度，电子给体和电子受体的位置及数量对其光电性能的影响，探讨材料发射红移的主要因素；选取性能良好的目标化合物P4制备成OELD器件，对其电致发光性能进行研究；(4)运用Gaussian98量子化学程序包，采用量子化学方法对目标化合物P4的光电性能从理论加以解释，进一步认识荷移跃迁的整个过程，为红光材料的设计加以指导。

The UV radiation created is converted to visible light as it passes through a phosphor coating on the surface of the tube.

因为激活的电子从高能态退到低能态，他们放射出紫外线，当通过玻璃管表面的三基色荧光粉时，产生的紫外线转化成可见光。

The TiO2 synthesized by normal and reverse micelles as templated were applied for phot ocatalytic of Rhodamine B and organic toxic small molecule 2.4-dichlorophenol under ultraviolet irradiation. Oxidation species and photodegradation products in the photoreaction process were detected for studying their photocatalyst properties. The results showed that: the R-TiO2 had a better photocatalysis property under UV irradiation when photodegradation of RhB and DCP compared to the N-TiO2. After 160min, the mineralized rate of RhB can be 95%. And the oxidative species was mainly referred to OH radical.

利用正相和反相胶束介质模板制备的纳米TiO2为光催化剂，在紫外光照射下，对染料罗丹明B和有机有毒无色小分子2，4-二氯苯酚进行光催化降解，研究了其光催化性能，并对光催化过程中氧化物种及降解产物进行了跟踪测定，结果表明，反相胶束模板体系制备的纳米TiO2与正相胶束介质制备的纳米TiO2比较，在紫外照射下对RhB及DCP的降解有较好的光催化性能，对RhB在160min尤催化矿化率可达95%，光催化反应主要的氧化物种涉及在基自由基。

The photo resist finish that's exposed to UV light will become soluble.

整个曝光是通过起模板作用的掩模完成的。

It is a process of organic pollutant degradation under the action of UV and photocatalyst.

它是将特定光源与催化剂联合作用对有机污染物进行降解处理的过程。

The mechanisms of UV - irradiation on crystalline lens are direct photochemistry damage and light oxidative stress.

光的辐射能导致哺乳动物细胞DNA的损伤，损伤的程度是由波长和细胞的外在环境决定的。

The UV photoconductivity increases by two orders. Till today, we don't find any reports like ours.

迄今为止，Zn膜氧化法制备的ZnO薄膜所具有的这些特殊的表面形貌和紫外探测特性，我们还没有见过类似的报道。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。