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- perfume extracting solvent 香料抽出溶剂
- It can be used as fragrant in perfume extract,deodorant,fragrance fixatives and feedstock lines. 可作为香精、祛臭剂、定香剂、饲料待业加工中的香味剂;
- Therefore, the ethyl acetate is the optimal extracting solvent to distill the active compounds from Helianthus tuberosus leaves. 4. 菊芋叶片乙酸乙酯提取物对四种病原真菌抑制效果最为显著,因此乙酸乙酯是菊芋叶片中抑菌活性物质的最佳提取溶剂。
- The results showed that addition of appropriate extracting solvent could increase the relative vol atility 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。
- Ethanol and formamide were determined by capillary column gas chromatography using FID detector .Water was used as extracting solvent and n-butanol was used as internal standard. 采用水作萃取溶剂,正丁醇作内标,毛细管柱气相色谱法测定伊维菌素中残留溶剂乙醇和甲酰胺的含量。
- Methyl isobutyl ketone was used to be extracting solvent .The interference of the matrix was corrected effectively and the results obtained are satisfactory. 采用甲基异丁基酮萃取富集后,消除了基体的干扰,使分析结果准确可靠。
- 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。
- Through selecting extracting solvent,extracting times and alkalinizing method,Oxymatrine is extracted and purified by ion-exchanging and re-crystallization. 通过对溶剂、提取次数、碱化条件的选择,用离子交换和重结晶的方法提取纯化氧化苦参碱。
- The n-pentane is one of good extraction solvents. 正戊烷是一种优良的浸出溶剂。
- 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。
- 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。
- I caught a whiff of perfume as she swept past me. 她从我身边走过时,我闻到一股香水味。
- 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。
- Can you smell the perfume of the roses? 你能闻到玫瑰花的香味吗?
- 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。
- A mist of perfume hung in the air. 空气中飘溢著香水的雾气。
- Conclusion: The imperialine extraction efficiency is greatly affected by the extraction solvent. 5)的西贝素的提取效率最高。
- Selecting a more suitable extraction solvent is highlighted by oil technologists in each country. 因此,选择更适宜的浸出溶剂为各国油脂工作者所重视。