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- Methods Artemisinin is extracted with petroleum ether and pass column of silica gel and gradient elution with ethyl acetate,then it is tracked with TLC and detected with UV-VIS. 方法青蒿经石油醚提取浓缩,浸膏经过硅胶柱,用不同配比的乙酸乙酯洗脱,用TLC法跟踪,UV法检测。
- column of silica gel 硅胶柱
- Then the extracted material was sequently filtered and sperated by means of silica gel column chromatography. 提取物通过硅胶柱层析分离,得到无辣味的红色色素。
- In conclusion,the separation method of silica gel column chromatography applied in this experiment can be used to gain highly purified prod... 结论:采用的硅胶柱层析分离纯化可得到纯度较高的分离组分。
- After column chromatography of silica gel,the total flavonoids of the extractum was 70.94%.[Conclusion] The fineness of total flavonoids extracted from propolis increases consume... 采用硅胶柱层析对蜂胶浸膏进一步纯化;最终得到含量达70.;94%25的蜂胶总黄酮。结论醇提酯萃法结合硅胶柱层析;可大大提高蜂胶总黄酮的纯度。
- Methods The extract of Viola yedoensis was isolated and purified by means of silica gel column chromatography and identified by spectroscopic experiments to determine the structure of compounds. 方法采用柱层析对紫花地丁植物中的提取物进行分离提纯,并利用现代波谱方法分析鉴定,确定化合物的结构。
- Firstly, the HAP was isolated by the adsorption characteristics of silica gel, and purified by Gel filtration column (Sephadex G-75) secondly, removing the protein fragment of 10-25kDa. 本研究首先利用硅胶对混浊蛋白的吸附特性而初步分离出HAP,再通过凝胶过滤(Sephadex G-75)柱纯化,去除10-25kDa的少量连续蛋白片段,经SDS-PAGE电泳纯度鉴定,最终获得纯度较高的HAP(MW约40kDa)。
- Electronics stepless speed regulation,conveyer utilized rotated bar with heatproof tube made of silica gel. 电子无级调速,输送机构采用自转式输送棒,并加耐热硅胶管。
- A analytical method for fatty acids profile of phospholipids in serum samples was developed by solid extraction column of silica gel-gas chromatography(SPE-GC). 以硅胶基质为固定相,建立了固相萃取-气相色谱(SPE-GC)分离检测血清总磷脂中脂肪酸含量的方法。
- The Guangzhou good profit rubber Limited company mainly produces each kind of silica gel product. 广州良益橡胶有限公司主要生产各种手机按键和硅橡胶制品。
- She angled her column of chitchat toward teenagers. 她的漫谈栏侧重于十几岁的青少年。
- Very hungry, see a double Miss Gao Ting, was a fierce bite into Tou Zha, found her mouth full of silica gel, so Yangtianchangtan: "Alas! 饿极,见一小姐双乳高挺,遂一头扎入猛咬,发现嘴里全是硅胶,于是仰天长叹:“唉!
- The equilibrium adsorption test results show that the hygroscopic capacity of new composite desiccant is two times bigger than that of silica gel. 实验结果显示与常用硅胶干燥剂相比,前者的吸湿能力约是后者的2倍以上。
- The filter cake of silica gel used as the carrier of polyolefine catalyst was dried by compartment drying and centrifugal spray drying respectively. 采用厢式干燥和离心喷雾干燥2种干燥方法,对聚烯烃催化剂用载体硅胶滤饼的干燥效果进行了比较,并研究了干燥过程对硅胶物性的影响。
- Objective To elucidate the mechanism of silica gel membrane(SGM) with bone morphogenetic protein (BMP) and hydroxyapatite (HA) in repairing segmental bony defect. 目的 探讨硅胶膜 (SGM )管与骨形态发生蛋白 (BMP) /羟基磷灰石 (HA)复合物联合修复兔长骨缺损的机制。
- Objective: To study the efficacy of Silica Gel Membrane (SGM) with Bone Morphogenetic Protein (BMP) and Hydroxyapatite (HA) in repairing segmental bony defect. 目的 :探讨硅胶膜 (SGM)管与骨形态发生蛋白 (BMP)和羟基磷灰石 (HA)复合后修复兔长骨缺损的效果。
- A reversed phase stationary phase of HPLC made by covering a porous copolymer of ethyl-styrene with divinylbenzene on the surface of silica gel is reported. 当代应用最广的HPLC固定相中,硅胶基质填料化学稳定性较低,并且由于残存硅羟基而表现所谓第二效应,特别使碱性化合物的峰形拖尾;
- Can you add up this column of figures? 你能把这行数字加起来吗?
- You must cast up this column of figures carefully. 你必须认真地将这一栏数字加在一起。