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- A new molecular design method is proposed in this paper, which is used for designing the optimal extractive solvents. 摘要本研究提出一种新的萃取溶剂分子设计策略,首先以溶剂选择性为标准预选官能团,缩小分子设计的范围;
- The new method has been proved successful by two case studies in simulating molecular design of extractive solvents. 采用本设计的方法模拟计算了两个萃取溶剂设计实例,获得了令人满意的效果。
- The n-pentane is one of good extraction solvents. 正戊烷是一种优良的浸出溶剂。
- This study gives the prime reference for the new technology of alcoholic fermentation with immobilized yeast coupling with extractive solvent. 为固定化酒精酵母乙醇发酵与溶剂萃取耦合新工艺的开发研究提供初步资料。
- The catalyst, the extractive solvent, the VLE data and the simulation results provide a foundation for the medium scale test and industrializations of DMM in this paper. 本文提出的催化剂和萃取剂,以及二元、三元和四元汽液平衡数据为DMM的制备及提纯提供了依据。
- Ethyl Acetate has been selected as extractive solvent and Methanol has been selected as crystallization solvent,Solane has been purified by using the two grades extractive crystallization equipment. 由于茄尼醇的粘度很大、熔点低,无法用传统的方法分离纯化,针对其分离难问题,本文提出采用乙酸乙酯为萃取溶剂,甲醇为结晶溶剂,利用两级萃取结晶装置分离提纯茄尼醇。
- In this paper, the content of polyphenols and chlorogenic acid were determined in different parts of artichoke, different growing stages, different growing environments and different extract solvents. 本实验中,对朝鲜蓟不同部位,不同生长期,不同生长环境条件下的多酚和绿原酸含量进行了分析,并比较了不同提取剂的提取效果,结果显示:多酚和绿原酸在叶片中的含量明显高于花托和苞片。
- The antioxidative effects are obvious differences in chill of different species and in different extraction solvents. 不同辣椒品种及不同溶剂提取的辣椒籽提取物的护色效果存在明显差异。
- RESULTS: The extraction rates was affected by extract solvent, extract times, Coccus- solvent ratio and extract temperature. 结果:乙醇浓度、提取次数、料液比和提取温度影响胭脂虫红酸提取效率。
- Extraction of polyphenols from Humulus lupulus L was optimized from extracting solvents and other extracting conditions. 从提取溶剂及提取条件等方面对啤酒花多酚提取工艺进行了优化研究。
- Several kinds of novel extraction solvents were presented which mainly included N - formylmorpholine,dimethyl formamide, etc. 介绍了石油化工领域采用的几种优良抽提剂,包括N-甲酰吗啉、二甲基甲酰胺等。
- The intermediate was the extract of Radix Angelicae Sinensis and Rhizoma Corydalis using 80% ethanol as extracting solvent. 中间体是当归和元胡的80%25乙醇提取物,由于阿魏酸和延胡索乙素性质不同,无法在同一流动相条件下同时出峰,故分别以二者为指标峰建立2套指纹图谱。
- Second, since there is no need to recover solvents by adopting TBP as extraction solvent, this technology has simplified the procedure, reduced energy consumption and the cost. 以磷酸三丁酯作为萃取剂,对萃余酸和反萃酸不需要进行溶剂回收,简化了流程、降低了能耗、节约了成本。
- The selectivity calculated shows that furfurol is an excellent extraction solvent for separating FCC slurry. 计算所得选择性表明糠醛是分离FCC油浆的有效溶剂。
- Ethanol was the best extraction solvent, and continuous reflux extraction was the most appropriate extraction method. 结果表明,乙醇为瑞香狼毒根的最佳提取溶剂,连续回流提取法为其最佳提取方法。
- The selection of extraction solvent and acidity of stripping agent, and the effect of interferencing ion were studied. 并对测定过程中有机萃取剂,反萃酸度的选择及干扰离子的影响进行了探讨。
- The results shows that extraction solvent is extremely important for carotenoid analysis of different materials a... 结果表明,材料的类型对于提取溶剂的选择极其重要,溶剂的选择不当,将造成类胡萝卜素提取得不完全。
- The extraction solvent of chemical extraction had pois on which could cause some pollution and toxicity. 化学萃取法的提取溶剂有毒,会造成一定的污染和毒害。
- Conclusion: The imperialine extraction efficiency is greatly affected by the extraction solvent. 5)的西贝素的提取效率最高。
- Methods To determine the effect on the content of the flavonoids from the different types of extracting solvents and the solvents with different concentrations by HPLC. 方法采用高效液相色谱法,测定不同类型提取溶剂和不同浓度溶剂对黄芩中黄芩苷产率的影响。