提纯

Water can be made pure by distilling it.

水可以通过蒸馏而。

The method was established for purification of diflubenzuron by crystal technique with mixed solvents.

本文论述了利用混合溶剂——结晶法除虫脲的分析技术。

Synthetic peptide purification. Are isocratic elution and volume overload options to improve process economics?

合成蛋-无梯度洗脱和容量超负荷的取舍能高工经济性？

This paper analyzes the purifying and processing method of superabundance mother liquid in the production process of chloroactic acid.

对氯乙酸生产过程中得到母液的及后残液加工处理法进行了较详细的分析介绍。

Regenerationprocess of deteriorated chloroplatinic acid by reducing and purifying is introduced.

介绍了变质氯酸经过还原、，再生为分析氯酸的中间操作过程。

The source and functioning as well as the separation, purification, identification and the effect of host sear-ching kairomone were studied.

本文研究了该蜂在寄主定位过程中,搜索利它素的存在部位、作用式及其分离、、鉴定,以及初步应用效果。

The technique of extracting araboxylan in wheat bran and its analysis technique of chemical structure and the molecular weight were introduced.

文章介绍了从小麦麸皮中阿糖基木聚糖这一重要化学物质的工法及对取的阿糖基木聚糖的化学结构、分子量的分析技术。

By controlling reaction condition in different steps and hydrogenated with Raney Ni,most of components were converted into industrial grade p-menthane without purification.

实施分阶段控制反应条件，用雷尼镍催化，使大多数组分均加氢成对孟烷，无需，即达到工业级的要求。

With adoption of post processing of vacuum pneumatic conveying,the conveying cooling and purification of tripolycyanamide can be fulfilled at the same time,which t...

改用吸送式气力输送后处理工后,既能输送,又能冷却、三聚氰胺,实现自动化包装,并彻底改善工作环境。

This paper has studied the phthalocyanin complex of Cobalt synthesized by benzene bitter wine-urea law,and after depuration,an infrared, ultra-violet spectrograph determination is carried.

文章主要研究了苯酐-尿素法合成酞菁钴、经并对其进行红外、紫外光谱测定、合成及表征结果表明,红外光谱表征推测结构可靠,紫外光谱分析表明有特征吸收峰之处。

Active placentin from lamb placenta was extracted by modern technology of biological engineering, the preparation technology is simple and needed no specific purification process.

摘要以健康羊胎盘为原料，采用现代生物工程技术制备活化羊胎素，制备工简单，无需特殊手段。