solvent column

  • solvent column
  • 释义

    溶剂塔

纠错 数据更新时间:2026-04-19 16:27:25
1、

Three active compounds were isolated from the marine bryozoan Bugula neritina living in the South China Sea by bioassay-guiding isolation method with a combination of extraction with suitable solvent and multiple column chromatography ( Sephadex LH-20, ODS and preparative HPLC).

以中国南海海域大量生长的总合草苔虫为原料,将化学分离和活性追踪相结合,经溶媒提取和多种层析方法(Sephadex LH-20,ODS,HPLC等)分离,得到3个活性单体。

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2、

The results showed that the relative volatility of ethanol-water azeotropic mixture increased obviously as solvent ratio increased and the slop cut of water-glycol lasted a very short time during which the temperature at the top of the column rose sharply.

实验得出,乙醇水体系的相对挥发度随溶剂比的增加而显著增大,水乙二醇过渡馏分段持续时间很短,在该段时间会出现塔顶温度急剧跃升的现象;

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3、

Design of Solvent Treating Column for Butadiene Plant

丁二烯装置溶剂精制塔的设计

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4、

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。

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5、

A wide bore HP-fast GC residual solvent column was performed, and the effects of the equilibrium temperature and equilibrium time on the determination of ethyl acetate were studied.

试验采用大口径HP-快速GC残留溶剂柱为分离柱,对顶空平衡温度、平衡时间对残留有机溶剂乙酸乙酯测定的影响进行了分析研究。

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6、

They were extracted and isolated by solvent and column chromatography.

用溶剂提取和柱层析法.

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7、

The targets of this method is benzene, toluene, xylene ( three isomeric), styrene. It sampling on carbon tube, solvent desorbed or indirect thermal desorption and acked column gas chromatography to determination of aromatic hydrocarbon.

该方法主要检测的目标化合物包括苯、甲苯、二甲苯(三种异构体)、苯乙烯,采用活性炭采样,并使用二硫化碳溶剂解吸或间接热解吸的方法,配合填充柱气相色谱法分析。

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8、

An activity component was isolated from the culture of Streptomyces sp. by solvent extraction and column chromatography, and it was identified as antimycin A2 by structure elucidation.

从稀有放线菌7310菌株(Streptomyces sp.)的发酵菌丝中经溶媒萃取和硅胶柱层析初步分离出来一种活性成分,经结构鉴定为抑菌霉素(antimycins)的A2组份。

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9、

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。

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