查询词典 fluorescence

Experimental results showed that the intrinsic fluorescence of BSA was quenched by peperine molecules forming piperine-BSA complex. The mechanism of fluorescence quenching was mainly due to static quenching and non-radiation energy transfer.

实验结果表明：胡椒碱与BSA形成基态复合物从而猝灭BSA的内源性荧光，猝灭原因主要为静态猝灭和非辐射能量转移作用。

The binding feature of phenosafranine to bovine serum albumins was studied by fluorescence spectrophotometry, synchronous fluorescence spectrophotometry and ultraviolet spectrophotometry.

用荧光光谱、同步荧光光谱和紫外吸收光谱研究了牛血清白蛋白与酚藏花红的结合反应特征。

The results of fluorescence spectra indicate that fluorescence intensity ofBF in the glass enhances, and the photostability is much better.

荧光光谱研究结果表明，复合材料中BF的光稳定性得到明显改善，发光效率明显提高。

Their emission spectra were studied by photostationary fluorescence measurements and time-resolved fluorescence measurements.

利用稳态荧光光谱和时间分辨光谱技术对化合物在溶液中的荧光发射及激发态衰减行为进行了研究。

In this paper, twenty novel meso-substituted porphyrins of four series were designed and synthesized by increasing the conjugation of porphyrins or introducing substituents with high fluorescence quantum yield into the meso-position of porphine, and then red OLEDs were fabricated by doping porphyrins into a suitable host using ten porphyrins compounds and their electrolumin -escence properties were tested. The main contents and results were generalized as follows:Three meso-tetrakisporphyrins 4a-c and three conjugations of porphine-triarylamine linked by styrene 10a-c were synthesized and characterized by 1H NMR, MS, UV-vis spectra and fluorescence emission spectra.

本文通过增大卟啉分子的共轭结构或将具有高荧光量子产率的基团连接到卟吩环的中位得到了四类共20个新型的卟啉化合物，并选取其中10个化合物制备有机发光器件来考察材料的电致发光性能，具体内容包括以下几个部分：设计合成了3个中位直接被三芳胺取代的卟啉化合物4a-c和3个通过苯乙烯连接的卟吩-三芳胺共轭体10a-c，通过核磁氢谱、质谱、紫外吸收光谱和荧光发射光谱表征了新化合物的结构。

The male and female rats (n=15, respectively) were randomly divided into three groups, and Fluoro-Ruby, a fluorescent tracer, was stereotaxically injected into the ventromedial hypothalamus, bed nucleus of the stria terminalis and posterodorsal nucleus of the amygdale by iontophoresis, respectively.Five days later, the rats were perfused, and the sections containing SDN-POA region and site of injection were cut on a freezing microtome.the sections were viewed to assess extent of tracer deposition in the injection site and to reveal the EGFP or Fluoro-Ruby fluorescence in SDN-POA under fluorescence microscope.

雌、雄性大鼠(各15只)随机各分成3组，分别通过离子电渗法将示踪剂Fluoro-Ruby注入下丘脑腹内侧核（VMH、终纹床核、杏仁核后背侧核。5 d后，灌流固定鼠脑，做冷冻冠状切片，荧光显微镜下确定示踪剂注入位置，并观察SDN-POA绿色荧光和Fluoro-Ruby标记荧光。

From the photophysical behaviors of 1, 3, 4-triaryl-2pyrazoline compound (TPP16) at low temperature, it can be considered that the twisted configuration between pyrazoline ring and the non-substituted phenyl group on the position 1 is the fluorescence configuration of conjugated system Ⅰ, and the twisted configuration between pyrazoline ring and P-nitrobenzene group is fluorescence configuration of conjugated system Ⅱ.

研究了1，3，4-三芳基-2-吡唑啉化合物TPP16在低温时的发光情况，发现：在低温77K下，共轭体系Ⅰ(苯基-N1-N2＝C3-苯基)在非极性溶剂中不发荧光，在极性溶剂中有较强荧光发射；而共轭体系Ⅱ(N1-N2＝C3-C4＝对硝基苄叉)在非极性溶剂或极性溶剂中均有荧光发射，表明N1所联取代基与吡唑啉环相扭曲的构象是共轭体系Ⅰ的发光构象，而对硝基苄叉与吡唑啉环相扭曲的构象是共轭体系Ⅱ的发光构象。

With the new synthesized fluorescence reagent, a novel fluorescence quenching method for determination of superoxide radical was developed by coupling the reaction of pyrogallic auto-oxidation reaction.

合成了一种新的荧光探针试剂香草醛缩苯胺，利用元素分析、红外光谱等手段对探针试剂进行结构表征；结合部苯三酚的自氧化作用，建立了一种荧光法测定超氧阴离子自由基O2

Results showed that the new type rhodanine ramifications were good performance fluorescence reagents to determine the trace matter by fluorescence analysis.

同时，通过对上述试剂在测定铁、钴、铜、锡和锑时的条件的变化的研究，对这类试剂的分子结构和荧光性能的内在关系作了简要的探讨，讨论了供、吸电子基团对胂酸基偶氮若丹宁类衍生物荧光分析性能的影响。

The relationship between the molecular structure and fluorescence performance of reagents was discussed in brief, and the influence of the electron-supplying and electron-withdrawing groups to the fluorescence performance of carboxylphenylazo rhodanine ramifications was also studied.

简要探讨了分子结构与荧光性能的关系，讨论了供、吸电子基团对羧酸基偶氮若丹宁类衍生物荧光分析性能的影响。

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。