您要查找的是不是:
- STUDY ON LEACHING AND PURIFYING METHOD OF FLAVONES FROM MARCHANTIA POLYMORPHA L. 地钱总黄酮提取的研究。
- Results:The best purifying method was extracting with water,then adding alcohol to 70%. 结果:最佳纯化方法为水提醇沉法,加入乙醇使含醇量达70%25。
- The paper mainly deals with the phosphatide's structure, classify, function and separating and purifying method, as well as its application. 介绍了磷脂的结构、分类、功能、国内外磷脂的提纯分析方法,以及磷脂在各个领域中的应用。
- We use liquid ammonia instead of ammonia solution to the synthesis of acidamide by acyl chloride, and developed purifying method of acidamide. 对酰氯生成酰胺的反应,利用液氨气化后气体导入代替氨水,并对酰胺的纯化进行实验,找到了合理的纯化方法。
- The separations of monomeric chemical substances of Pulsatilla Decoction have been carried out by the separating and purifying method of the phytochemistry. 运用天然药物化学的分离精制方法,对白头翁汤汤剂进行单体化合物的分离。
- Using high-grade witherite from Sichuan Wanyuan Miaozi as a raw material,the analytical purity barium cholride is prepared by HCl leaching and new purifying method. 研究了以四川万源庙子的毒重石富矿为原料,用盐酸浸取,通过新工艺净化制备出分析纯的氯化钡。
- The synthetic conditions and purifying methods of the intermediates and macrocyclic ligands were studied. 对中间体及产物的合成和分离纯化方法进行了讨论。
- Based on reviewing enzyme types and structure, purifying methods, determination of catalase activity, characters are all summarized in this paper. 在论述过氧化氢酶类型划分、结构特点及生理功能的基础上,对其分离纯化、活性测定、性质研究做了综述。
- Conclusion This test provides the extraction and purifying methods to obtain high quantity and purity of extracts from Leonurus.This method is a purely physical process and has not any pollution. 结论该方法采用全物理过程,无任何污染,是提取益母草黄酮类物质的有效途径。
- This paper is to give a completely introduction of the main composition,extraction methods,purifying methods etc,and give a discussion of its applying potential in food. 本文对葛根中所含的主要成分、提取方法、纯化方法等进行了全面介绍,并对葛根在食品中的应用潜力进行了探讨。
- The method seems good but it needs to be tried out. 这个方法似乎不错,但需要试验一下。
- The synthesis methods for alkyltin halide were reviewed and compared.The production process for alkyltin oxide was introduced as well as its separation and purifying methods. 综述了烷基卤化锡的合成方法并进行了比较,介绍了烷基氧化锡的生产工艺及分离提纯方法。
- This paper introduces recent research progress on preparation of bisphenol S, whch includes its physical properties, application, synthesizing and purifying methods. 摘要介绍了制备双酚S研究的新进展,包括双酚S的物性、用途、合成及提纯方法。
- A multistep and efficient purify method is put forward, which units the advantages both of liquid oxidation method and solid oxidation method. 电弧放电法制备的纳米碳管光滑平直,管径较小而且均匀,分散性好。
- The act or an instance of cleansing or purifying. 净化洗涤或净化的行为或情况
- I can't claim infallibility for this method. 我不敢说这方法绝对有效。
- Summer fallow is the best method of destroying weeds. 夏季休耕是消灭杂草的最好办法。
- Popularizing this new method is not an easy job. 推广这种新方法不是件容易的工作。
- This is not an economical method of heating. 这不是一种经济的取暖方式。
- I have a simple and easy method. 我有个简易的方法。