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The qualitative and quantitative determination of the components of sucrose fatty acid esters by TLC scanning, column chromatography (CC) and HPLC is described . 采用薄层色谱(TLC)扫描法、柱色谱法(CC)和高效液相色谱法(HPLC)定性及定量地测定了蔗糖脂肪酸酯的组分。
Methods:The fermentation extracts were isolated and purified from endophyte HCCB00189 by solvent extraction,column chromatography and preparative HPLC,respectively. 方法:采用溶剂萃取、硅胶柱层析及制备HPLC等方法,对活性菌株的发酵物进行分离,并根据理化性质和光谱分析对化学结构进行鉴定。
Methods:Using column chromatography method to separate the unknown impurities from the crude sophoridine,then analysing and identifing its structure through HPLC,IR,SXRD. 方法:采用柱层析法从槐定碱粗品中分离得到未知杂质,通过HPLC、IR、单晶X-射线衍射法分析鉴定其结构。
The sample of ginkgo biloba extracts was prepared by solvent extraction,column chromatography and solid phase extraction,the ginkgolic acids was purified by preparative HPLC. 通过萃取、层析和固相萃取等方法预处理银杏叶提取物,然后用HPLC制备色谱柱自制银杏酸纯品,结合紫外光谱、氢核磁共振和高效液相色谱,对银杏酸进行结构解析。
Methods Pristimerin was isolated and purified by polyamide column chromatography and silica gel column chromatography,and the content of pristimerin was determined by HPLC. 方法南蛇藤根粉经丙酮冷浸提取后,采用聚酰胺柱层析及硅胶柱层析进行分离纯化;
Methods: Column chromatography and recrystallization were adopted to isolate and purify neferine, while its structure and purity were determined by UV, IR, NMR, MS, TLC and HPLC analysis. 方法柱层析分离,重结晶纯化甲基莲心碱,UV,IR,NMR,MS,HPLC及TLC等方法确定甲基莲心碱的结构和纯度。
Galangin was obtained by on-step column chromatography of polyamide only once. 运用聚酰胺柱层析－次分离，获得有效成分高良姜素。
Its homogeneity was identified with Sepharose 6B column chromatography. 紫外光谱显示它不含蛋白质、多肽及核酸。
In this paper, we extracted the antioxidative substance from Alpinia oxyphylla Miquel by using column chromatography. 摘要探讨了干柱层析法分离益智渣及益智乙醇提取物的抗氧化成分。
METHODS: Alcoholic extraction, silica gel, ODS column chromatography and recrystallization were used. 方法:采用工业酒精提取、胶柱层析、DS柱层析和重结晶等方法。
METHODS CTX-d was fractionated and purified from Naja naja atra venom by column chromatography and RP-HPLC. 方法应用柱层析及RP-HPLC,从眼镜蛇毒粗毒中分离纯化细胞素素(CTX)。
Results Galangin was obtained by on-step column chromatography of polyamide only once. 结果运用聚酰胺柱层析-次分离，获得有效成分高良姜素。
Objective To separate flavonol and flavanonol by the column chromatography of polyamide. 目的采用聚酰胺柱色谱分离黄酮醇与二氢黄酮醇类化合物。
To set up a sephadex column chromatography method for the determination of polymer impurity in cefotetan disodium. 目的建立葡聚糖凝胶色谱法测定头孢替坦二钠中聚合物的方法。
Results Pure flavonol and flavanonol were obtained by the column chromatography of polyamide. 结果运用聚酰胺柱色谱法一次分离得高纯度黄酮醇与二氢黄酮醇。
The molecular weight of the antibiotic substance is 48000 Dalton,tested by sephadex-G75 gel column chromatography. 而且用Sephadex－G75凝胶柱层析法测得抗生物质的分子量为48000道尔顿
Conclusion: Silica gel column chromatography and crystallization are simple and rapid methods to isolate gardenoside. 结论:柱层析和重结晶方法是简单、速分离栀子苷的有效办法。
The extract was further purified by column chromatography to get the acicular crystals of reserpine of 99. 将萃取所得产物用硅胶柱色谱进一步分离提纯;得到了质量分数为99.;8%25的利血平针状结晶。
Methods The compounds were isolated by silica gel column chromatography and identified by spec-tral analysis. 方法通过硅胶柱色谱法分离纯化化合物,谱学方法鉴定其结构。
Then the extracted material was sequently filtered and sperated by means of silica gel column chromatography. 提取物通过硅胶柱层析分离，得到无辣味的红色色素。