查询词典 spectroscopic

Emphasis on reaction mechanisms, synthesis, stereochemistry, as well as chemical and spectroscopic methods of analysis.

课程重点在反应机构、合成、立体化学、化学分析及仪器分析方法。

Now researchers have performed spectroscopic and microscopic examinations on the wood and varnish of five Stradivarius violins and think they have uncovered Stradivari's secret.

研究者们通过分光镜和显微镜检测了五把斯氏小提琴的木材和油漆，现在他们认为自己已经揭开了斯氏琴的秘密。

Three ketocoumarin dyes that has different substituent at 3-position were synthesized and the spectroscopic properties were investigated.

二。香豆素染料吸收与发射光谱的性质及作为荧光极性探针的研究合成了3个3-位不同取代基的香豆素染料，研究了它们在不同环境下的吸收与发射的光谱性质。

The structure of all kinds of [60]fullerene derivatives and their characterization via (13)~C NMR spectros-copy are reviewed and the (13)~C NMR spectroscopic properties of various symmetry [60]fullerene derivatives are mainly dis-cussed .

本文全面综述了多种[60]富勒烯衍生物的结构，阐述了(13)~C NMR谱在[60]富勒烯衍生物结构表征中的应用，重点讨论了不同对称性[60]富勒烯衍生物的(13)~C NMR谱图特征。

METHORD: The chemical constituents of Schisandra micrantha were isolated by various column chromatographic methods. Their structures were assigned by spectroscopic methods including 2D NMR experiments, and their anti-HIV-1 activities and cytotoxicities were tested by microtiter syncytium formation infectivity assay.

采用多种柱层析分离进行化合物的分离和纯化，通过波谱分析鉴定化合物的结构，化合物的抗HIV-1活性通过对HIV-1感染C8166细胞致细胞病变的抑制试验得到。

The results indicate that in Er3+-doped niobic tellurite glasses, proper amount of B2O3 can be used as a mo-difier to improve thermal stability and spectroscopic properties of Er3+ ions.

结果表明，在掺铒碲铌玻璃中，适量的B2O3能较好地提高玻璃的热稳定性能和Er3+离子的光谱性质。

ESR and UV-vis spectroscopic investigations suggested that the tetrahedrally coordinated iron and vanadium species incorporated within the silica framework.

ESR、紫外可见光谱结果表明铁和钒以高度分散的四配位状态存在于分子筛的骨架中。

The relationship between the intensities of surface enhanced Raman spectroscopic bands and the thickness of SiO2 was determined by employing thiophenol as the probe molecule.

以苯硫酚为探针分子研究了核壳结构纳米粒子的表面增强拉曼散射效应与二氧化硅壳层厚度之间的关系。

Rare earth elements possess particular electron structure, and have some uncomparable spectroscopic properties, so their complexes can present excellent luminescent, electric and magnetic properties.

稀土元素具有独特的电子层结构，因而具有其它一般元素所无法比拟的光谱学性质，其配合物更是具有优异的光、电、磁等特种功能。

On the basis of spectroscopic analysis, they were identified as adenine, adenosine, ura...

根据光谱分析分别鉴定为：腺嘌呤，腺嘌呤核苷，尿嘧啶，尿嘧啶核苷和D-甘露醇等。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了