查询词典 elemental analysis

In the third chapter, eight new complexes of 4, 6-dimethylpyrimidine 2-thioacetic acid with rare earth metals has been synthesized and characterized by means of elemental analysis, molar conductivity, IR,〓 NMR and TG-DTA. The general formula of the complexes is Ln〓(n=4 or 5). In the complexes, the deprotonated ligand coordinated to the rare earth metal ions in chelate bidentate mode. 4 or 5 molecular of crystal water existed in the complexes.

第三章合成了八种4，6-二甲基嘧啶-2-硫代乙酸的稀土配合物，通过元素分析、摩尔电导、红外光谱、核磁共振氢谱和热重-差热对配合物进行了表征，研究结果表明，配合物的组成为Ln〓n=4或5），在配合物中配体羧基脱去质子后采用螯合双齿的方式与稀土离子形成配位键，同时，配合物中含有4或5个结晶水。

With the principle of innovation, this paper has studied the social influence of Sino-German Financial Cooperation Project, and has made an elemental analysis of it.

本文以&创新&为切入点，对中德财政合作造林项目产生的社会影响进行了探讨，对其进行了因素分析。

With the principle of innovation, this paper has studied the social influence of Sino-German Financial Cooperation Project, and has made an elemental analysis of it.

中文摘要：本文以&创新&为切入点，对中德财政合作造林项目产生的社会影响进行了探讨，对其进行了因素分析。

The titanium-substituted heteropoly tungstates with B and Si as acentral atom were synthesized and characterized by elemental analysis, IRspectra ,UV spectra ESR and 〓 NMR spectra.

经元素分析红外光谱、紫外光谱以及〓核磁共振谱，确定了它们的化学式和它们在因态及溶液中的结构—Keggin结构。

In the second part, we used tri-octyl phosphine oxide as a model of TRPO,to study the γ radiolytic behavior of TOPO and its CH solution and the emulsificationphenomenon in the separation processes of radiolytic products. The structures of finalproducts were analyzed with IR spectra, UV spectra, MS and elemental analysis.

本论文的第二部分，以TOPO为TRPO的模式化合物，用终产物分析的方法对TOPO的辐解特性及乳化过程进行了研究，并运用红外光谱、紫外光谱以及元素分析、质谱等方法对乳化物的结构进行了分析。

Solid complexes of rare earth picrates with the ligand 2,6-bis(benzimidazol-2-yl)pyridine have been synthesized and characterized by elemental analysis, IR and electronic spectra. The crystal and molecular structures of the complex [CeL22]·(CH3OH)3 have been determined by single crystal X-ray diffraction.

合成了稀土苦味酸盐与配体2，6-二(2-苯并咪唑基)吡啶的配合物，通过元素分析、红外光谱及电子光谱对配体及配合物进行了表征，并用X射线单晶衍射测定了配合物[CeL22]·(CH3OH)3的晶体结构。

In this dissertation, a kind of MPc and five metallonaphthalocyanine were synthesized. The molecular structure of the compounds were characterized by means of the elemental analysis, the infrared spectrum and the nuclear magnetic resonance spectrum, which proved that the topical compounds were successfully synthesized.

本文设计并合成了五种叔丁基取代的金属萘酞菁化合物和一种金属酞菁化合物，通过元素分析、红外光谱分析、核磁共振氢谱分析等对目标产物进行了结构表征，验证了所合成化合物的结构。

In this work,activated carbon fiberswere respectively modified using different concentration ammonia aqueous solution,and the textural pvoperties and the surface oxygen content as well as the surface acidities of the modified ACFs studied were determined by nitrogen adsorption,elemental analysis and Boehm titration methods.

主要研究采用氨水对活性炭纤维ACF表面进行改性，制备了3种不同的改性ACF，测定ACF孔结构和表面酸碱基团，并测定了苯乙烯在改性ACF床层的吸附透过曲线，讨论了改性ACF的孔结构和表面酸碱基团对其吸附性能的影响。

The structures of the compounds were characterized by elemental analysis, 1H NMR, IR, and MS spectra.

合成产物的结构用元素分析、1H NMR、IR和MS测试技术进行了表征。

The structures of the target compounds 6 were characterized by IR, 1H NMR spectra and elemental analysis.

目标产物的结构通过IR， 1H NMR和元素分析进行了表征。

You'll be in trouble it you don't watch out .

如果你不注意，你会有麻烦的。

Shaped like a biconvex lens.Of, relating to, or having the form of a hyperbola.

双曲线的属于双曲线的，与之有关的，或有双曲线形状的