查询词典 spectroscopic

On the basis of molecular design and assembly, the polyoxometalate compounds supported by Keggin, Dawson, lacunary Keggin, and Silverton-type etc. polyanions on the basis of well-known and novel polyanions as building blocks were successfully synthesized by the hydrothermal technique, which are"decorated"or"bridged"by organic N-donor and/or O-donor ligands. The study on synthetic conditions and rules for these hybrid compounds and characterization by X-ray crystallography, spectroscopic, thermal, electrochemical and magnetic properties are carried out.

本文主要利用水热合成方法，从分子设计及组装的思想出发，借助不同N和含O的有机配体对多金属氧酸盐阴离子结构进行&修饰&或&桥连&，合成了一些以饱和Keggin结构、饱和Dawson结构、缺位Keggin结构和Silverton结构等阴离子为构筑模块的多金属氧酸盐化合物，研究了这些化合物的合成条件及规律并对它们的晶体结构、谱学性质、热性质以及磁性质进行了研究。

The results according to the process spectroscopic detection and checking of the magnetic resonance and magnetical separation of resultant by HGMF indicate that the most of composite particles possess both magnetism and Au characteristic.

实验中应用水相合成法制备Fe3O4/Au纳米复合微粒，通过对复合微粒生成过程的光谱检测，对生成物的磁响应性检测和采用HGMF磁分离，表明绝大多数颗粒既具有磁性，又具有纳米Au的特征。

Cephalomappa sinensis is a monotypic genus ever-green tree endemic to the calcareous mountainous region in southwest of Guangxi Zhuang Autonomous fresh branches are used as feeding stuff for cattle,horse,sheep,and can make them find the possibility of developing feed additive or medicine for livestock,the chemical constituents from this plant were chemical constituents of its roots had been reported in our earlier continuation of our investigation on the branches of Cephalomappa sinensis,a new norneolignan,named Ceplignan(1),was isolated from ethanol extract through column structure was elucidated on the basis of spectroscopic evidence.

肥牛木(或称肥牛树，Cephalomappa sinensis)为大戟科一单种属植物，为常绿乔木，其分布区狭窄，仅限于广西西南部石灰岩山地[1]。肥牛木为优良木本饲料树种，是牛、马和羊的好饲料，用该植物饲养牛，可使牛肥壮，故有肥牛木的名称[1]。研究其化学成分，目的在于探讨开发饲料添加剂或兽药的可能性。我们曾报道了肥牛木根的化学成分[2，3]，在对其枝条的进一步研究中，又分离得到一个新的降新木脂素，命名为肥牛木素。本文报道其分离方法和结构鉴定结果。

ABSTRACT PZT thin films with a composition near the morphotropic phase boundary ﹝ w/w=52/48﹞ were prepared by the sol-gel process, and atomic force microscopy and spectroscopic ellipsometry were utilized to trace the sintering processes.

摘 要 用溶胶-凝胶技术制备了组成在准同型相界点﹝m/m=52/48﹞附近的钙钛矿相PZT薄膜，并运用原子力显微分析与椭偏法测试相结合的方法跟踪了薄膜的烧结过程。

The spectroscopic characteristics of C60 on Ag electrode s in nonaqueous solution were studied by surface-enhanced Raman scattering technique.

采用表面增强拉曼光谱技术研究了乙腈溶液中C60的悬液在银电极表面的光谱特征，得到了银电极表面C60团簇和表面吸附C60分子的光谱信息。

The spectroscopic analysis, TGA and X-ray diffraction showed that the organic reagent had intercalated into the layers of MMT, and the interlayer space of the organophilic montmorillonite modified by compound surfactants was larger than that of the CTAB modified organophilic montmorillonite.

红外光谱分析、热重分析和X-射线衍射分析表明，有机插层剂已进入蒙脱土的层间，CTAB/己内酰胺复合插层有机蒙脱土的层间距大于单阳离子CTAB插层有机蒙脱土的层间距。

Spectroscopic properties of Er3+ doped transparent oxyfluoride borosilicate glass ceramics containing Ba2LaF7 nanocrystals are systematically investigated.

制备了含有Ba2LaF7纳米晶的Er3+掺杂氧氟硼硅盐玻璃陶瓷，并对其光谱特性进行了研究。

Within the diamond anvil cell, the Raman spectroscopic study of phengite was developed at room temperature and under various pressures from 1 atmp to 20 GPa.

在金刚石压腔中，通过原位拉曼光谱研究了多硅白云母在常温高压下的稳定性。

On the basis of spectroscopic analysis and comparison with the reported data, they were identified as kaempferol-3-O-β-D-glucoside, kaempferol 3-O-β-D-6-p-hydroxycoumaroylglucoside, L-2-O-methyl chiro-insitol and phillyrin.

叶的95%乙醇提取物中分离得到了4个化合物，经波谱分析，其结构分别鉴定为山萘酚－3-O-β-D-葡萄糖苷、山萘酚－3-β-D-（6-对羟基桂皮酰基）葡萄糖苷、L-2-O-甲基－手－肌醇和连翘苷。

The interaction between diammonium glycyrrhizinate and bovine serum albumin was studied in physicological solution by spectroscopic methods including fluorescence spectra and UV visible absorption spectra. Synchronous fluorescence and three-dimensional fluorescence spectra were used to investigate the conformation change of bovine serum albumin due to the addition of diammonium glycyrrhizinate.

在模拟人体生理条件下，用常规荧光光谱和紫外－可见吸收光谱研究甘草酸二铵和牛血清白蛋白的相互作用机制，并利用同步荧光光谱和三维荧光光谱研究了药物对牛血清白蛋白构象的影响。

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。