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  • It has the advantages of high active oxygen content, weak acidity of the aqueous solution and good solubility in organic solvent in comparison with other solid peroxides.

    同其它过氧化物相比,它具有活性氧含量高,水溶液呈弱酸性及能溶于有机溶剂的特点。

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  • As a "surfactant" or wetting agent and solvent, PG is actually the active component in antifreeze.

    丙二醇是“表面活性剂”,或湿润剂、溶解剂,是防冻液中一种主要成分。

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  • The application of accelerated solvent extraction(ASE) technique for the Analysis of active components in traditional Chinese medicinal herbs was introduced by using two kinds of herbs as examples.

    以两种药材为研究实例,对加速溶剂萃取法(ASE)在中药材有效成分提取研究中的应用进行了简要介绍。

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  • Tea polyphenol is the major physiological active component in tea, and it is generally manufactured by liquid-liquid extraction technology, using ethyl acetate as solvent from water extract of tea.

    茶多酚是茶叶中主要生理活性物质,其制造方法一般采用液-液萃取工艺,以醋酸乙酯为溶剂,从茶汤中萃取出茶多酚。

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  • Objective To estimate the antitumor activity of Qinglongyi alcohol extract and different solvent fractions and screen the antitumor active fractions in vitro.

    目的研究青龙衣乙醇提取物及不同溶剂萃取部位对肿瘤细胞的体外抑制作用,筛选青龙衣抗肿瘤活性部位。

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  • The organic active compounds are prepared based on organic rare - earth coordinated complex, surfactant, assistant of surfactant, stabilizer and solvent.

    摘要由有机稀土配体化合物、表面活性剂、助表面活性剂、稳定剂、溶剂等原料制备出有机稀土活性复合物。

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  • Methods: Active carbon tube adsorption and solvent desorption were used for sampling hexane and analysis was performed by GC(FID).

    方法:以活性碳管采集空气中正己烷,用二硫化碳解吸后气相色谱(FID)测定。

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  • In several ionic living polymerization systems, there are two kinds of active species such as ion pairs and free ions, or contact ion pairs and solvent separated ion pairs.

    在一些离子型活性聚合反应体系中,存在两种具有链增长反应活性的物种,例如自由离子和离子对。

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  • The reverse micelle system is formatted by surface active agent and organic solvent.

    反胶团体系是由表面活性剂和有机溶剂形成的非水体系。

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  • Surface active agents. Industrial detergents containing solvent for washing hands. Specifications. Tests.

    表面活性剂。车间洗手带溶剂洗涤剂。规范。试验。

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  • The fractionation methods of palm oil are composed of dry fractionation, solvent fractionation and surface active agent fractionation.

    棕榈油的分提方法有:干法分提、溶剂分提及表面活性剂分提。

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  • The results showed that addition of appropriate extracting solvent could increase the relative volatility of active amyl alcohol and decrease the number of theoretical plates.

    结果表明,加入合适的萃取剂可有效地提高旋光性戊醇对异戊醇的相对挥发度,减少分离所需的理论板数。

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  • TX active carbon filter cartridge is made of active carbon particles, which are sintered together with cohesive solvent.

    TX型活性碳滤芯采用活性炭颗粒加工厂入粘结剂加温烧结而成。

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  • Main ingredients Many kinds of surface active agents, whitener and solvent.

    主要成份多种表面活性剂、增白剂、溶剂。

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  • In the invention, the problem of the solubility of the eriocalyxin B is solved, the prepared agent can be free of organic solvent, and the dose of the surface active agent is small;

    本发明解决了毛萼乙素的溶解度问题,制得的制剂可不含有机溶剂,表面活性剂用量小;

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  • Plant operation after modification shows that active MDEA co 2 removal technique has advantages such as low consumption of steam, electricity and solvent; high purification and good solvent stability.

    改造后装置运行表明,活化mdea脱碳技术具有蒸汽、电、溶剂消耗低,净化度高,溶液稳定等优点。

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  • Plant operation after modification shows that active MDEA co 2 removal technique has advantages such as low consumption of steam, electricity and solvent; high purification and good solvent stability.

    改造后装置运行表明,活化mdea脱碳技术具有蒸汽、电、溶剂消耗低,净化度高,溶液稳定等优点。

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