查询词典 elemental analysis

We introduced two newly developed methods, one is the Maximum Entropy Principle for the analysis of the positron lifetime spectra, and another is the two-detector Doppler broadening technique with so-called W-S map for identification elemental specificity of positron annihilation spectra.

介绍了最新发展的正电子谱学方法，用于分解正电子寿命连续分布的最大熵原理，用于鉴别缺陷化学环境的双探头多普勒展宽和W-S图。

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。

Then quality upgrading scheme was explored in order to solve the high content of sulphur and nitrogen in pyrolytic oil, low flash point as well. Yields of pyrolysis of scrap tires in a pilot-scale rotary kiln under 550℃were firstly summarized. Then elemental composition and physiochemical properties were analyzed on both pyrolytic crude oil and its fractions. Based on these researches, the feasibility that pyrolytic oil is used as fuel was discussed. From FT-IR spectra the functional group compounds were generally acquainted, and by column chromatography analysis chemical compositions were clearly known. Then through GC analysis the absolute content of BTX in pyrolytic crude oil was defined.

本文首先考察了中试回转窑550℃下的废轮胎热解产率及热解原油的元素组成和理化特性，对其作为燃料使用的可行性进行了分析；通过实沸点蒸馏研究了轻质、中质馏分热解油的基本特性：红外分析得出了有代表性馏分热解油的大致官能团组成形式，对热解油的强芳香性和部分不饱和性有了整体了解；化学族组成分析进一步了解了热解油内在化学族组成和含量，对热解油的内在性质有了更为深入理解；气相色谱分析对热解油中富含的苯、甲苯和二甲苯进行绝对定量，为热解油提取BTX化工原料的经济性提供了参考。

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。

All the compounds were confirmed by elemental analysis, IR and ^1H NMR.

所有的化合物经元素分析、IR和^1HNMR得到了证实。

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