方法:采用溶剂提取和柱层析色谱分离,根据化合物理化性质和光谱数据鉴定其结构。
Method: Compound were isolated by solvent-extraction together with column chromatography and the structure were determined by spectroscopic analysis.
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.
方法:原植物鉴定、药材果实性状、显微特征、薄层色谱和紫外光谱鉴别。
Method: Identification of botanical origin, analysis of fruit shapes and properties, microscopic characteristics, TLC and UV.
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.
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.
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.
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.
方法:溶剂提取及各种柱色谱法分离,光谱技术鉴定结构。
Method: The compounds were extracted with solvents, isolated by various column chromatography and identified by spectroscopic methods.
方法:柱色谱分离化合物,光谱分析和对照品比较鉴定结构。
Method:Compounds were isolated by column chromatography and elucidated on the basis of spectroscopic analysis and comparison of references.
方法:用色谱和光谱分析法分离和鉴定。
Method: Chromatography and spectroscopic analysis were used to isolate and elucidate the chemical constituents in the plant.
产物经熔点、薄层色谱、红外光谱等方法鉴定,产率达到90%,其生物效价符合药典要求。
The products are tested by the melting point, TLC and IR, showing yields 90%. The result of bioassay meet the requirements of Chinese Pharmacopeia.
并用薄层色谱及紫外吸收光谱进行了鉴定。
Were observed by microscope and analyzed by TLC and UV spectrum.
根据各组分的色谱行为、光谱特征和在碘催化下发生几何异构的产物分析,13,13'-顺式番茄红素、11,11'-顺式番茄红素、9,9'-顺式番茄红素和全反式番茄红素4个组分被鉴定。
According to its chromatographic behavior, spectral characteristics and geometrical transition catalyzed by iodine, 4 isomers of 13,13'Z-, 11,11'Z-, 9,9'Z- and all E-isomers were identified.
方法利用硅胶柱色谱、制备高效液相色谱等方法进行分离,根据化合物的光谱数据和理化性质鉴定其结构。
METHODS The compounds were separated by column chromatography with silica gel and prep-HPLC, whoso structures were elucidated on the basis of spectroscopic data and physicochemical properties.
方法:溶剂提取和硅胶柱色谱法进行分离,理化性质和光谱数据鉴定其结构。
Method: Compounds were separated by solvent extraction and column chromatography with silica gel and structures were elucidated by chemical evidence and spectral analysis.
将萃取所得产物用硅胶柱色谱进一步分离,用红外光谱,紫外光谱和核磁共振光谱等手段鉴定所得结晶。
The extraction was analyzed by HPLC, and was separated by column chromatography ulteriorly. The crystal was identified by IR spectrum, UV spectrum, NMR, et al.
结果利用气相色谱、色谱-质谱联用、红外光谱等分析表征手段,鉴定反应产物确实是硼酸三甲酯。
By means of gas chromatography, mass spectrometry and IR spectrum, the product was confirmed to be trimethyl borate.
方法利用各种色谱技术进行分离纯化,根据化合物的理化性质和光谱数据进行结构鉴定。
MethodsThe chemical constituents were isolated and purified with silica gel chromatography, their structures were determined by spectral analysis and chemical evidence.
方法用多种色谱技术对化合物进行分离纯化,并用光谱技术和单晶X射线衍射技术鉴定化合物的结构。
The crystal structure of the substituted cucurbituril has been detected by using single crystal X-ray diffraction analysis.
方法用多种色谱技术对化合物进行分离纯化,并用光谱技术和单晶X射线衍射技术鉴定化合物的结构。
The crystal structure of the substituted cucurbituril has been detected by using single crystal X-ray diffraction analysis.
应用推荐