1) extraction and recrystallization
萃取重结晶
1.
With 70% bergenin as raw material,extraction and recrystallization of bergenin by supercritial CO2 is carried out.
以70%的岩白菜素为原料,采用超临界CO2萃取重结晶岩白菜素,考察了甲醇、乙醇、丙酮和乙酸乙酯4种夹带剂对超临界CO2萃取重结晶岩白菜素的结晶率、纯度、形貌和IR图谱等的作用规律。
2) extraction and crystallization
萃取结晶
1.
Technology model with response surface methodology for supercritical CO_2 extraction and crystallization of andrographolide;
响应曲面法建立超临界CO_2萃取结晶穿心莲内酯工艺模型
2.
With the new technique of supercritical carbon dioxide extraction and crystallization, Andrographolide intermediate was used to investigate the effects of ethanol, acetone and ethyl acetate on the crystallization ratio, purity and crystal configuration on Andrographolide extraction and crystallization.
选择穿心莲内酯中间体为原料,采用超临界CO2萃取结晶法,比较研究了乙醇、丙酮与乙酸乙酯三种夹带剂对超临界CO2萃取结晶穿心莲内酯的结晶率、纯度和晶型的影响。
3.
According to limitation of supercritical CO2 extraction and effective components crystallization from natural products, the author put forward entrainers, coordination extraction, magnetic field, electric field, supersonic method and surface adsorption to enhance supercritical CO2 extraction and crystallization.
针对超临界CO2萃取结晶天然产物有效成分存在较大的局限性,本文总结了夹带剂法、配位剂法、磁场法、电场法、超声强化法、表面场法等强化措施以提高超临界CO2萃取结晶效果。
3) extractive crystallization
萃取结晶
1.
Study on experimentations and correlations of extractive crystallization at solane purification technology;
茄尼醇萃取结晶提纯的实验及关联研究
2.
Application status, development trend and relevant separation principle of present extractive crystallization technology in theseparation field of inorganicsaltsand organiccompoundswereindividually discussed.
分类讨论了目前萃取结晶技术在无机盐及有机物分离领域中的应用现状、发展趋势和相应的分离原理,概括得到萃取结晶的一般原理。
4) extracting and crystallizing
萃取结晶
1.
as experimental material to investigate the effect of extracting and crystallizing pressure, temperature and timeon the purity of ginkgolides extracted and crystallized by supercritical CO2 via single factor experiments.
本文根据中草药有效成分含量低,结晶性组分易堵塞管道等问题,以银杏叶粗提物为原料,通过单因素实验的方法,探讨萃取结晶压力、温度、时间对超临界CO2萃取结晶银杏萜内酯的纯度影响。
2.
as experimental material toinvestigate the effect of ratio of liquid to solid material, extraction temperature and extraction time on pre-treatment of supercriticalCO2 extracting and crystallizing ginkgolides via single factor experiments.
本文根据中草药有效成分含量低、超临界稀溶液特点及溶剂提取技术原理,以银杏叶粗提物为原料,通过单因素实验的方法,探讨液固比、浸提温度、浸提时间、提取次数对超临界CO2萃取结晶银杏萜内酯前处理工艺的影响。
5) Extraction-Crystallization
萃取-结晶
6) extraction crystallization
萃取结晶
1.
This paper gives another way-extraction crystallization-to purify betaine.
合成甜菜碱的传统分离方法有许多不足,提出用萃取结晶的方法提纯甜菜碱。
补充资料：重苍
1.犹重霄。指天。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
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