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.
利用拉曼光谱鉴定宝石越来越受到宝石学界的关注。
The use of Raman spectroscopy to identify gem has attracted the attention of increasing number of gemologists.
本文介绍了利用化学法分离，红外光谱鉴定国外一工程塑料件的化学物质组成成分。
This paper reported the result of the analysis of the chemical components of foreign—made engineering plastic artical.
反应产物用稀盐酸溶液洗涤，将所得沉淀干燥后经分离纯化，对纯化产物进行高分辨质谱、红外光谱鉴定。
The residue was washed with dilute hydrochloric acid solution, The precipitation was dried, purified, and identified by the infrared spectrometry (IR) and high mass spectrometry(HRMS)with DES-HS.
应用光谱和与已知品对照TLC法鉴定了所有化合物的结构。
The structures were identified on the basis of spectra data and TLC comparison with known compounds.
应用光谱法和对照TLC鉴定了所有化合物的结构。
Their structures were identified on the basis of spectral data and TLC comparison.
同时，应该将现代考古研究成果、历史研究成果及光谱测试、化学成份分析等科学手段应用于钱币鉴定之中。
In the meantime, scientific means, such as modern archaeological findings, historic research achievements, spectrum and chemical component analyses, should be applied to the appraisal of currencies.
目的：建立不同金莲花药材的红外光谱鉴别方法，为对其科学评价与品质鉴定提供新技术。
Objective: to establish a method to identify different Flos Trollii with ir spectra and to provide a new technique for their science estimation and quality identification.
并对合成产物的熔点、红外光谱等进行了分析、鉴定。
And the synthesis products were analyzed by measuring melting piont, IR etc.
用色谱、光谱以及与标准品对照等方法鉴定代谢产物的结构分别为菜子甾醇和豆甾醇。
The products were identified to be brassicasterol and stigmasterol respectively based on their chromatographic and spectral properties as well as by comparison with the authentic samples.
方法经柱色谱分离，理化常数和光谱分析鉴定化合物结构。
METHODS The constituents were separated and purified by column chromatograph and identified by spectral analysis and physical data.
拉曼光谱测定是一种快速无损鉴定红色珊瑚的方法。
Therefore, the measurement of Raman spectrum of red coral provides an efficient and rapid method of identification of coral.
并利用傅立叶变换红外光谱对胶原结构进行鉴定，同时采用高效液相色谱对所提胶原蛋白进行氨基酸组成分析。
The structure of collagen was identified with Fourier Spectrum, and the aminophenol of collagen was assayed with high performance liquid chromatography.
利用红外吸收光谱及核磁共振波谱仪的一维和二维技术对一种未知聚合物试样进行鉴定。
An unknown polymer was determined by one-dimension and two-dimension technologies of infrared absorption spectroscopy and nuclear magnetic resonance.
油脂部分依次以石油醚、苯、氯仿、乙酸乙酯、丙酮、乙醇为淋洗剂进行洗脱，利用红外光谱、核磁共振光谱法对所分离组分进行了结构鉴定。
The compositions of grease were eluted with petroleum ether, benzene, chloroform, ethyl acetate, acetone, ethanol and characterized by means of IR and NMR spectroscopy.
用硅胶柱层析法分离纯化，用光谱法进行结构鉴定。
METHODS ? The isolation and purification was performed by silica gel column chromatography and the structures were identified by spectral analysis.
经光谱数据的分析，分别鉴定为木栓酮（1）、5羟甲基糠醛（2 ）、柠檬苦素（3）、闹米林（4 ）及胡萝卜苷（5 ） 。
The structures of these compounds were determined as friedelin(1), 5 hydroxymethyl furaldehyde(2), limonin(3), nomilin(4), daucosterol(5)by spectral methods.
傅里叶变换红外光谱技术可以有效、快速、无损和准确地鉴定处理翡翠。
FTIR spectrometer technique has been found to be a useful, fast, non-destructive and accurate method for identification of bleached jadeite.
通过红外光谱、核磁共振和负离子电喷雾质谱三种表征技术鉴定了原油中的石油酸结构和组成。
The structures and compositions of the purified petroleum acids were characterized by using infra-red spectrum, nuclear magnetic resonance and negative-ion electrospray ionization mass spectrum.
方法利用反相层析的方法进行分离纯化，根据化合物的化学性质与光谱数据鉴定其结构。
Methods to isolate the constituents by reverse phase chromatography, and characterize their structures by the analysis of chemical property and spectral data.
采用性状鉴定、显微鉴定、薄层色谱和紫外光谱法进行比较研究。
The comparative study was conducted by trait identification, microscopic identification, thin-layer chromatography and ultraviolet spectroscopy.
经化学与光谱方法鉴定其结构。
Their structures were identified based on chemical and spectroscopic methods.
用红外光谱MALDI-TOF质谱和同步X 射线吸收谱以及计算机模拟对NDH进行了鉴定和表征。
NDH was identified and characterized with infrared (IR), MALDI-TOF mass, and synchrotron X-ray absorption spectroscopies (XAS), and with computer simulations.
因此，显微拉曼光谱仪记录到的材料振动谱和荧光谱为珍珠的分析研究及日常鉴定提供了可靠的信息资料。
We conclude that the vibrational and fluorescent spectra of these pearly can provide reliable information for their study and identification.
结论生物碱2、3、5、8、9为首次从该植物中分离得到，应用光谱法鉴定了所有化合物的结构。
CONCLUSION Compounds 2, 3, 5, 8 and 9 were isolated from this plant for the first time. Their structures were identified by spectral data.
方法：色谱法和光谱技术分离鉴定其化学成分。
Method:Chromatography and spectral analysis were used to isolate and elucidate the constituents.
其化学结构经光谱解析和化学方法鉴定。
All structures of the compounds were established by spectral interpretation and chemical methods.
研发了这种新的烯类单体(MG)的最佳制备条件，并通过红外光谱、元素分析等结构鉴定方式分析了该单体的结构。
The best synthesis conditions of the new olefin monomer (MG) were developed. And its structure was analysised under the way of IR spectroscopy, elemental analysis and mass spectrometry.
鉴定结果表明：人工抗原的紫外光谱图与载体蛋白和半抗原的紫外光谱相比均发生变化；
The results showed that UV absorbance spectrum of artificial antigen of GA-BSA changed compared with carrier BSA and hapten GA.
鉴定结果表明：人工抗原的紫外光谱图与载体蛋白和半抗原的紫外光谱相比均发生变化；
The results showed that UV absorbance spectrum of artificial antigen of GA-BSA changed compared with carrier BSA and hapten GA.
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