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Under the catalyst, the polymerization retarder, the including water medicinal preparation existence condition, the methylacrylic acid and the polyethylene glycol single methyl ether (400) direct esterification synthesis methylacrylic acid polyethylene glycol single methyl ether (400) ester, and the influence factors of the catalyst, polymerization retarder, including water medicinal preparation has mellowly carried on the comparison.

摘要在催化剂、阻聚剂、带水剂存在的条件下,由甲基丙烯酸与聚乙二醇单甲醚(400)直接酯化合成甲基丙烯酸聚乙二醇单甲醚(400)酯,并对酸醇比、催化剂、阻聚剂、带水剂等影响因素进行了比较。

Once your space is organized, you are ready to begin the other significant preparation phase of your project, the mental preparation.

一旦你的物理空间已经打理完毕,你就要开始准备进入你的工作的另一个重要的阶段,那就是心理准备阶段。

The present invention is one kind of water dispersive nano-level bone morphogenetic protein injection preparation and its preparation process.

本发明公开了一种水分散性纳米级骨形态发生蛋白注射制剂及其制备方法。

In order to find out the proteinase suitable for soybeen peptide preparation,studies were conducted on the properties of mucor producing protease,the preparation method of mucor protease,the decomposition of soybeen protein isolated by mucor protease,and the molecular weight of the enzymatic decomposition products.

为探寻适合于制备大豆多肽的蛋白酶,对毛霉产蛋白酶的特性、毛霉蛋白酶的制备方法及其对大豆分离蛋白的降解进行了研究,并测定了酶解产物的相对分子质量。

The preparation procedure is as following: purification and assay for purity of neptunium, preparation of neptunium nitrate solution, making solution for ageing, subpacking the solution to ampoules, fire sealing, weighing for earch ampoule, homogeneity test, stability test, and certification.

以工厂的氧化镎作原料,经原料提纯→纯度鉴定→配成硝酸溶液→放置陈化→分装→火封→称重→均匀性检验→稳定性检验,最后进行定值。

Preparation of the prescription of gu yan was divided into drug granule and capsule by the primary study of preparation. Nux vomica was made into capsule according to 0.33g per granulation and the other was made into drug granule according to 15g per bag.

制剂研究初步确定"骨炎方"的制剂分为颗粒剂与胶囊剂两部分,将"骨炎方"中马钱子制成胶囊、余药按一定工艺制成颗粒剂,颗粒剂15克/袋,胶囊0.33克/粒。

Methods:the preparation procedure of β cyclodextrin inclusion compound of pennyroyal was studied by orthogonal test with 3 factors: pennyroyal, temperature and time.the inclusion compound was proved by thin layer chromatography and microscope.results:the optimum preparation conditions for inclusion compound were established as :pennyroyal 2.5 ml ,inclusion temperature was at 50℃ and for 3.5hr.

用正交实验法研究配比、温度、时间三个因素对薄荷油β环糊精包合物的饱和水溶液法的制备工艺的影响,考察包合物的收率,并用tlc、显微影像验证包合物的形成。结果:最佳的工艺条件薄荷油2.5 ml,包合温度50℃,包合时间3.5 h。

During the preparation of AlOOH sol , Effects of peptizator, H2O/AL,hydrolysis time, hydrolysis temperature, aging time and composition were studied, it had been found that preparation period could be shortened by extending hydrolysis time. It was possibily because that , iso-propanol produced in the reaction could be volatilized when extending hydrolysis time, its harmful role to peptization process could be avoid in this condition.

在制备AlOOH溶胶过程中,系统研究了胶溶剂、H2O/AL、水解温度、水解时间、陈化温度和陈化时间的影响,并首次发现了延长水解时间可以显著缩短制膜周期,通过分析认为延长水解时间可以使反应过程中生成的异丙醇挥发出去,避免了其对胶溶过程的阻碍作用。

The A13 sol and Al(0H)3—Zr4 sol is prepared by peptization method with A1(NO3)3 , ZrOCl2 and NH3H2O as starting materials, using A1(NO3)3 solution and Zr4 sol as peptizing agents, and the preparation process, preparation conditions and colloid structure are analyzed.

本文以Al(NO_3)_3,ZrOCl_2和氨水为原料,分别以Al(NO_3)_3溶液和Zr_4溶胶作为胶溶剂,通过胶溶法制备Al_3溶胶和Al_3—Zr_4溶胶,并对两种溶胶的制备过程,制备条件和胶团结构进行了分析。

The dissolubility of PPLA in water was (2.16~4.32)×10-2 mg·mL-1 according to eye judgment. The critical micelle concentration was 2.16×10-2 mg·mL-1 obtained from a fluorospectrophotometer. The self-assembled aggregates of PPLA in water were nanoscale spheres observed by a transmission electron microscope. The particle size and zeta potential tests by dynamic light scattering revealed that during preparation, the ratio of hydrophilicity/hydrophobicity, the aqueous medium and the pH had great influences; while dilution, freezing and pH change to basic condition had no effect after preparation, but pH change to acidic condition made the nanoparticles precipitate.

目测法得到其溶解度为(2.16~4.32)×10-2 mg·mL-1;荧光法得到聚合物的临界胶束浓度为1.12×10-3 mg·mL-1;透射电子显微镜观察显示该聚合物在水中的自组装聚集体为纳米级球形;动态激光光散射测试微球的粒径和Zeta电位发现,在微球的制备过程中,聚合物的亲/疏水性比例、水相介质及水溶液的pH值对它影响显著;而制备后,稀释和冷冻对它无显著影响,改变微球的环境pH值至酸性,出现聚集,至碱性无影响。

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其中的诀窍就是不要去&想&念头,让它流贯心头,保持心的自由和开放。

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不论黑色,灰色,灰白,蓝色或者merle,有没有白色的或者相反都是合格。