用于痕量元素分析，存储有机溶剂。
部分样品进行地球化学元素分析实验。
And thirdly , some samples have been made geochemical elements analysising.
利用FTIR和元素分析对其进行表征。
元素分析是分析化学一个重要的研究内容。
Element analysis is an important research area in analytical chemistry.
这些新化合物均经元素分析和红外光谱鉴定。
All of the compounds were confirmed by elemental analysis and ir.
经元素分析、红外光谱对其结构进行了表征。
Their structures were confirmed by elemental analysis and the infrared spectrum.
通过化学分析、元素分析确定了配合物的组成；
The composition of the complexes was determined by EDTA capacity analysis and elemental analysis.
本文讨论了痕量元素分析中随机误差的规律性。
The regularity of random error of trace element analysis is discussed.
优选出最佳仪器工作条件和被测元素分析谱线。
The analytical conditions were optimized and the best spectrum lines were selected.
结果所得产物经熔点测定、元素分析确证其结构。
RESULTS Chemical structure of the product was confirmed by melting point and element analysis.
反应产物经过了元素分析、质谱和X射线的表征。
The products were characterized by elemental analyses, MS and X-ray diffraction analysis.
它们的结构经元素分析、IR和1hnmr表征。
The structures were characterized by elementary analysis, IR and 1hnmr.
方法：所得样品经元素分析、红外光谱证实其结构；
The sample's structure was confirmed by element analysis and infrared spectra.
用元素分析和1HNMR对目标化合物进行了表征。
The target compound was characterized by elementary analyses and 1HNMR spectra.
元素分析提供腐殖物质中主要元素分布的有用资料。
Ultimate analysis provides an useful inventory of the distribution of the major elements in humic substances.
产物结构经元素分析、红外光谱、核磁共振谱所证实。
The structures of Glucovanillin were identified by elemental analysis, IR and NMR.
利用ESI - MS及元素分析对其结构进行表征。
Its structure was characterized by ESI-MS spectra and elemental analysis.
所得产物经元素分析，红外光谱，质谱等分析确证结构。
Chemical structures of products were confirmed by element analysis, ir, MS, et al.
并给出了在缺乏元素分析的条件下，渣油氢含量的预测式。
The prediction correlation of residues hydrogen content was given in the absence of elemental analysis.
这一类判断很难与暗示月球干燥无水的氯元素分析相安无事。
Such estimates are hard to reconcile with the new chlorine work suggesting a bone-dry moon.
本文介绍了有机元素分析中影响燃烧过程的因素及控制方法。
The factors affecting the combustion process of the organic elemental analysis and the controlling methods are introduced.
用红外光谱、核磁共振、元素分析测定了共聚物的结构及组成。
The structure and composition of the copolymer were characterized by IR, NMR and elementary analysis.
原子发射技术的长处在于它是一种能同时进行多元素分析的方法。
The attraction of atomic emission techniques is that they provide a means for simultaneous multi-element analysis .
用红外光谱、打描电镜、元素分析等方法对接枝共聚进行了研究。
The graft copolymerization was investigated by using Infra-red Spectrometry, Scanning Electron Microscopy and Elementary Analysis.
合成了聚氯乙烯一吡啶树脂，并通过元素分析和红外光谱进行了表征。
PVC-Pyridine resin was prepared, and its structure was characterized by IR spectra and elementary analysis.
并用元素分析、红外光谱和热重分析等方法研究了聚合物的结构与性能。
The polymer structures were studied by means of IR spectra and chemical composition analysis. The polymer properties such as thermostability and hydrophobicity were also determined.
经元素分析、红外分析及折光率测定，表明最终产物确是甲瓦龙酸内酯。
And we confirm that the final product is MVA lactone by ultimate analysis and infrared analysis.
结果总收率达95.4%，目标化合物的结构经红外光谱和元素分析确证。
RESULTS the overall yield was 95.4%, the title compound was characterized by IR and elemental analysis.
结果总收率达95.4%，目标化合物的结构经红外光谱和元素分析确证。
RESULTS the overall yield was 95.4%, the title compound was characterized by IR and elemental analysis.
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