光谱分析

This indicates that these HA have similar compositions, but different structures and properties.Results from analysing E465/E665 are the same as those obtained by analysing molecule structure using colour index coefficientΔ~ K.Compassion study of HA in NaOH and NaHCO_3 solutions show that the absorption peaks shift towards the direction of longer wavelength.

这几个吸收带的变化证明了以紫色潮土HA、石灰性黄壤HA、中性紫色HA、酸性紫色HA、腐殖土HA为序的腐殖酸的芳构化度降低、缩合程度下降的观象，说明腐殖土HA其分子在苯环C骨架的聚合程度、芳构化度和分子复杂程度等上均最小，与紫外光谱分析结果一致。

Secondly, the structure and the characteristics were analyzed by X-ray diffraction, TG-DAT, infrared spectrum and Raman spectrum.

其次，通过XRD分析、X射线荧光光谱分析、热分析和晶体振动光谱对晶体的结构和成分进行了分析。

Its structure is analyzed by means of thermal gravimetric analysis, infrared-ray spectrum, X-ray diffraction and scanning electron microscopy.

采用热失重分析、傅立叶转换红外光谱分析、X射线衍射和扫描电镜对其结构进行了表征与分析。

The coordination compounds were characterized by infrared spectrum,X-ray diffraction spectrum and X-ray photoelectron spectrum.

用红外光谱、X-ray衍射和X射线光电子能谱等光谱分析手段对M-CTS进行了结构表征。

And precipitation rate of vanadium was higher than 98.5%. Five vanadium catalysts were made withγ-Al_2O_3 and the mesoporous molecular sieve MCM-41 as carrier, and were made by dipping method, intermingle process and functionalizing method respectively. The characterization of their pore size, crystal structure, specific surface area and V_2O_5 load of catalysts were studied by XRD, the adsorption /desorption of N_2 technique, Raman spectroscopy and XRF. The activities of the catalysts estimated by the synthesis of DPC with DMC and phenol.

钒催化剂的制备与表征及活性评价：是分别以γ-Al_2O_3和介孔分子筛为载体，采用浸渍法，掺杂法及官能化法制备了5种钒催化剂；分别对其进行了XRD分析、N_2吸附-脱附分析、红外光谱分析和荧光分析，对其孔径、晶型结构、比表面积和V_2O_5负载量进行了表征；以碳酸二甲酯和苯酚的酯交换合成碳酸二苯酯的典型反应为依据，对钒催化剂进行了活性评价。

The analytical results of TEM and infrared spectrum showed that it is a physical adsorption mainly between the absorbents and soot particles.

透射电镜和红外光谱分析结果表明，吸收剂与碳烟颗粒之间主要进行物理吸收。

The FTIR spectroscopic analysis reveals that the chemical structure of biomass has changed obviously after hydrogenating extraction in which the content of alkyls and aromatic structures obviously increased and the oxygen functional groups, mainly including carbonyls and hydroxys, decreased.

傅里叶变换红外光谱分析表明，经过加氢萃取，生物质的化学结构发生了明显的变化，饱和烃基和苯环结构增加，含氧官能团减少。

Series of environmental organics were detected based on the CNTs\'characteristics of favorable electron transmission, high catalysing activity, and large ratiosurface.

对所制备的修饰电极用透射电镜、扫描电镜、傅利叶红外光谱、紫外-可见光谱分析、电化学分析等各种方法进行表面形貌、结构以及电化学性能表征研究。

The dissolution mechanism of Zr-DBP crud in Na_2CO_3 solution is studied by both infrared spectrum analysis and extraction of Zr-DBP cruds by quaternary ammonium salt in Na_2CO_3 solution.

用红外光谱分析和季铵盐萃取研究了ZrDBP界面物在碳酸钠溶液中的溶解机理。

Analysis: direct phase,isocratic elution with n-hexane/dioxan e /methanol,spectral analysis, integration at 240 mn with correction factors accor d ing to Finzelberg D Andernach.

提取：室温下10倍氯仿，声波降解15分钟，旋转搅拌24小时；分析：直接定相，并以N-正己烷/二氧环杂乙烷/甲醇等清洗，光谱分析，参考偏差修正

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐