W / o complex with a citrate ligand has been prepared and characterized by the means of element analysis , ir , uv - vis , nmr and tg - dta 摘要报道了w / o柠檬酸配合物的合成及结构，并用元素分析、红外光谱、紫外可见光谱、光电子能谱、核磁、热重差热分析等手段进行了表征。
The molecular structure of ethyl cellulose was characterized and confirmed by elementary analysis , ft - ir and 1h nmr , and the compound obtained was final objective product 通过元素分析、红外光谱和核磁共振氢谱对产物的分子结构进行表征，确定所合成的化合物即为目标产物。
Standard test methods for elemental analysis of lubricant and additive components - barium , calcium , phosphorus , sulfur , and zinc by wavelength - dispersive x - ray fluorescence spectroscopy 润滑剂和添加剂元素分析的标准试验方法.用波长色散的x -射线荧光光谱测定法测定钡钙磷硫和锌的含量
The composition , microstructure , reaction mechanism and thermo - decomposing process of the precursors have been studied using element analysis , ir spectrum , ms spectrum and tg / dta analysis 通过元素分析、红外光谱、质谱和热重/差热分析对前驱体的组成、结构、合成反应机理及热分解过程进行了研究。
Element analysis apparatus and xps were taken to analyse the chemical components of the acquired products , the chemical elements of the systems were almost in according to which theoretical structural formula 利用元素分析仪和xps对合成产物的化学成分进行了分析，各体系的化学元素基本与理论化学式相符。
As a result , the sensitivity of method was enhanced . the extraction efficiency , stability , selectivity and quantity capability of c16 - mcm - 41 coated fibers to the samples were investigated 用xrd 、 n _ 2吸附-脱附、元素分析、 ft - ir和荧光光度法对复合材料进行了表征，荧光光度法是本文首次用于介孔复合材料的表征。
Based on the results from the study , a method for matrix differentition and qualitative and semi - quantitative component analysis for cu - based alloy was developed with bright application prospect 利用铜元素及成分元素特征谱线进行了基体鉴别和成分元素分析，研究结果可用于合金基体鉴别及铜合金成分元素的定性和半定量分析。
Dta , xrd , epma . x - ray fluorescence analysis and sem were adopted in the evaluation of structure , composition and morphology . the processing parameters were then decided by the measured results 应用差热分析、 x射线衍射、电子探针元素分析、 x射线荧光分析等手段详细探索了固相反应法制备mg - si基热电化合物的工艺制度。
The pulse neutron generator can be used to analyze the elements in substance , because it can produce pulse neutrons which have the characteristics such as high energy , monohcrome , safe using and controlled easily 脉冲中子发生器具有产生的中子能量高、单色性好，可控、使用安全，可产生脉冲中子的特性，可用来对物质进行元素分析。
The structures of these compounds were confirmed by means of nmr , 1r , elemental analysis and mass spectroscopy . the problems occurred in synthesis were discussed and dissolved . the synthesis processes were optimized 通过nmr 、 ir 、元素分析等手段对其结构进行了表征，对合成过程中出现的问题进行了讨论和解决，优化的合成方法。
