gel column

Separation of Acidic Organic Compounds on Silica Gel Column Using Mobile Phases Containing Acids

利用含酸移动相在硅胶柱上分离酸性有机化合物

Method: Isolation and purification of the trace constituents were carried out mainly by solvents extraction and macroporous adsorbing resin and silica gel column chromatography.

方法：用纯净水提取，溶剂萃取，大孔吸附树脂和硅胶柱色谱分离等方法分离并纯化亚麻根的微量成分，通过波谱分析鉴定化合物的结构。

METHOD: Using silica gel column chromatography and re-crystallization.

方法：工业酒精提取、硅胶柱层析和重结晶等方法进行提取分离，化学和光谱法鉴定结构。

Then the extract is separated and purified by silica gel column chromatography.

石油醚提取部分进行了反复的硅胶柱层析分离和纯化，初步得到了三种化合物。分别应用。

The results were: 1. Formononetin was separated by optimized chromatography method with silica gel column . 2.

结果如下: 1. 优化硅胶层析柱法,从红车轴草中分离出刺芒柄花素.

The pigment, the highest yield of which was 22.3% on the basis of dry fruit weight, could be purified by mobile phase of acetic ether acetonum ( 2 ∶ 1) in the silica gel column.

该色素用硅胶柱，以乙酸乙酯－丙酮（2∶1）作流动相可初步得到提纯，最高得率可达22.3%（以干果重计）。

The purity of isoquercitrin was isolated with a gel column.

酶反应产物用硅胶柱层析法提取,可以得到高纯度的异槲皮甙.

The oxygen containing components are obtained from Gudong Crude oil of Shengli by solvent extraction and separated into acidic and other components chromatographically on silica gel column.

用溶剂萃取法从胜利孤东原油中萃取、浓缩出含有机酸的活性组分，用柱色谱分离成窄馏分并进行了波谱鉴定。

Ten compounds and one sterol mixture were isolated from Serissa serissoides by various chromatographic methods such as silicon gel column chromatography, Sephadex LH-20, high speed countercurrent chromatography ( HSCCC), assistant with traditional methods like extraction and recrystalization.

采用硅胶柱层析、Sephadex LH-20凝胶柱层析、高速逆流色谱（HSCCC）等分离手段结合传统的萃取、重结晶等方法从白马骨的乙醇提取物中分离得到10个单体化合物和1个甾醇混合物。

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.

Methods Chloroacetic acid was treated with thionyl chloride, amines and triphenylphosphine to provide quaternary phosphonium salts, which were treated with phthalic anhydride to get the target compounds by the Wittig reaction. The pure products were obtained by silica gel column chromatography.

方法以氯乙酸为起始原料，依次与氯化亚砜、胺、三苯膦反应制得季磷盐，再与邻苯二甲酸酐经Wittig反应制得目标化合物，硅胶柱色谱得纯品。

Silica gel column chromatography and solvent extraction were used to separate grease and abradant in a kind of excellent polishing paste for plastics, respectively.

分别采用硅胶柱色谱法和溶剂抽提，分离优质塑料抛光膏中的油脂和磨料部分。

This device consists of silic gel column, activated charcoal column, flowmeter, conical flask, U-tube, nitrogen jar, air pump and the connected tubes.

该提取装置简单，由硅胶柱、活性碳柱、流量计、锥形瓶、U形管、液罐及各种连接管构成，容易组装。

Methods: Silica gel column chromatography and crystallization were used to obtained gardenoside from Gardenia jasminoides.

方法: 利用柱层析、结晶从山栀子的成熟果实中进行分离纯化栀子苷.

Using silica gel column chromatography made the further separation to chloroform extract.

采用硅胶柱层析的方法对最有效部位进行进一步的分离。