乙醚

yǐ mí
  • ether;diethyl ether
乙醚乙醚
乙醚 [yǐ mí]
  • [ether] 无色挥发性液体,有特殊气味,极易燃烧,分子式C 2 H 5 OC 2 H 5 ,用作溶剂、医用麻醉剂

乙醚[yǐ mí]
  1. 其中苍耳全株和苍耳叶的乙醚、丙酮提取液具有较好的抑菌效果。

    Diethyl ether and acetone extracts of Xanthium sibiricum ( the whole , not including fruit ) and these two kinds of extracts of leaf had strong fungistasis .

  2. 本研究采用石油醚、乙醚、甲醇、水溶剂梯度提取法和多种柱层析法,对栽培橘黄裸伞子实体进行了化学研究。

    The cultural fruiting bodies of the Gymnopilus spectabilis were phytochemical investigated using layer extracts with petroleum ether , diethyl ether , methanol and water and silica gel chromatography .

  3. 他一嗅到乙醚便失去了知觉。

    He lost consciousness at the first whiff of ether .

  4. 双(2-溴乙基)乙醚的~(13)cNMR

    ( 13 ) C NMR of bis ( 2 bromoethyl ) ether

  5. Sol-Gel负载磷钨酸催化合成乙二醇单乙醚醋酸酯

    Synthesis of Ethylene Glycol Monoether Acetate Catalyzed by Phosphotungstic Acid Immobilized on Sol-Gel

  6. SCⅠ经乙醚提取后的残渣中纤维素含量为7.59%。

    The content of cellulose from SC ⅰ was 7.59 % .

  7. BF3/乙醚配合物催化合成烷基二苯醚双磺酸盐

    Synthesis of Alkylated Diphenyl Ether Disulfonate by the Catalysis BF_3 & Et_2O

  8. GC-MS分析不同产地蜂胶的乙醚提取物

    Analysis of chemical compositions of propolis extractives with ether in different habitats by GC-MS

  9. 结论六味地黄汤及其乙醚萃取的有效成分对人类精子离体6h的活率、a级、b级以及a+b级精子的活率均有显著提高。

    Conclusion Liuwei dihuang decoction and its extraction by ether could rise the activity rate of human sperm in vitro .

  10. 低温速冻法较传统的乙醚麻醉法更好得避免了标本RNA的过多降解。

    The low temperature freezing technique was superior to that of the aether anaesthesia methods to have prevented the excessive degradation of RNA .

  11. 在对照土壤溶液的乙醚萃取物中检测到39个化合物,其中有7个化合物与水稻PI根系分泌物中化合物相同。

    In the soil solution , 39 compounds were detected , and 7 of them were the same of the root exudates .

  12. 碱法草浆造纸废水在酸性条件下经乙醚萃取&KD浓缩器浓缩,采用气相色谱质谱(GCMS)联用仪对其有机污染物进行了分析研究。

    In this paper , the extraction of organic compounds in alkali straw pulp papermaking wastewater with diethyl ether was conducted in acidic condition .

  13. SCⅠ乙醚提取物的通便效果较好,但波动起伏较大,且波动周期短;

    The aether extracts of SC ⅰ had better purgative effect , but waved greatly and had short period .

  14. 采用活性炭对放置一段时间的新装居室内气体和新购书橱内气体进行吸附,吸附气体后的活性炭经乙醚洗脱,洗脱液经氮气浓缩,进行GC-MS分析。

    Air pollutants in new decorated rooms and an bookcase were analyzed by GC-MS with adsorption on active carbon .

  15. 研究了采用低粘度的丙烯碳酸酯(PC)和高介电常数的计甲基乙醚胺(N-MA)以一定比例混合作极性有机物组分时高分子凝胶电解质的结构和性能。

    The structure and characterization of crosslinked polyether polymer gel electrolyte with mixture of propylene carbonate ( PC ) and N methylamine as dual component polar organic compounds were studied .

  16. 用Williamson法合成二甘醇单乙醚的研究

    Studies on Synthesis of Diethylene Glycol Monoethyl Ether Using Williamson Method

  17. Williamson反应合成β-萘乙醚的研究

    A Study on Synthesis of β naphthyl Ethyl Ether by Williamson Reaction

  18. 方法SD大鼠在乙醚麻醉下,舌下静脉注射人血清LDL(4mg/kg)诱发血管内皮功能损伤。

    Methods Vascular endothelial injury was induced by a single injection of native LDL ( 4 mg / kg ) in rats .

  19. 以乙醚为萃取剂时SDE法最优萃取时间为2h。

    Ether was used as extraction agent , 2h was the best extraction time for SDE .

  20. 方法:乙醚提取,硅胶及ODS柱色谱分离;

    Method : The constituents were extracted by ether and isolated by chromatography on silica gel and ODS .

  21. 通过GC、MS分离鉴定的玉金香挥发性芳香化合物有乙酸乙酯、乙酸丁酯、3-甲基戊酸乙酯、2-甲基2-丙醇、二乙醚、环己醇。

    The main volatile compounds of " Yujinxiang " melon were ethyl acetate , butyl acetate , pentanoic acid , 3-methyl , ethyl ester , 2-methyl-2-propanol , diethylether , cyclohexanol .

  22. 其中用GC-MS从乙醚部位中已鉴定出Sub1、3、7、11。

    Among them , Sub 1 , Sub 3 , Sub 7 and Sub 11 have been identified from ether fraction with GC-MS method .

  23. 用AB-8大孔吸附树脂分离、乙醚-丙酮分步沉淀得到纯百合皂苷。

    Saponin was separated and purified by AB-8 porous resin absorption and step-sedimentation with acetone-ether .

  24. 以碳酸二乙酯(DEC)为乙基化试剂,与苯酚在气固相条件下催化合成苯乙醚。

    Catalytic synthesis of phenetole by ethylation of phenol with diethyl carbonate ( DEC ) in fixed bed reactor was investigated .

  25. 研究通过在裂解液中加入聚乙烯吡咯烷酮去除多酚类化合物和利用水饱和乙醚去除多糖,改进了香蕉果实RNA的提取方法。

    A suitable method for extracting RNA from banana fruit pulp has been improved by added polyvinylpyrrolidone into the extract solution to remove polyphenolic compounds and using water-saturated ether to remove polysaccharides .

  26. 采用乙醚萃取分离污泥中的铁(Ⅲ)、铝(Ⅲ),以铬天青S(CAS)光度法测定铝的含量。

    The extraction of iron (ⅲ) and aluminium (ⅲ) from sewage sludge with diethyl was studied . The content of aluminium was determined with CAS spectrophotometry .

  27. 方法:血浆样品经乙醚-异丙醇(10∶1)提取、硅烷化处理后,选择GC-MS选择性离子和辅助定量离子监测。

    Methods : Perlolyrine in plasma was extracted with ethyl ether & iso-propyl alcohol and determined by means of GC-MS with selected ion and qualifier ion monitoring .

  28. 余下的含氟丙烯酸酯单体与丙烯酸丁酯、甲基丙烯酸丁酯及丙二醇乙醚混合并加入偶氮二异丁腈,溶解后缓慢滴加入四口烧瓶中保温反应4h,制得含氟丙烯酸酯共聚物。

    The rest fluorinated acrylic monomer is mixed with butyl acrylate , butyl methylacrylate and propanediol ether , and added by azobisisobutyronitrile .

  29. 新鲜韭黄浆液分别用有机溶剂乙醚、醋酸乙酯及正丁醇提取,得到蛋白质提取物及非蛋白质提取物,SOS显色试验证实韭黄经乙醚提取后的非蛋白质成分抗突变作用最强。

    Fresh hotbed chives solutions were extracted respectively by ether , acetic ether and n-butyl alcohol and protein constituents and non-protein constituents were obtained .

  30. 结果表明,中间体龙脑酰基二酯的最佳合成条件为:乙氧基镁丙二酸酯和D龙脑酰氯的物质的量配比为1∶14,反应时间为4h,反应温度为在乙醚溶液中回流;

    Results show that the optimal esterifying conditions are the ratio of 1 ∶ 1.4 and the reaction time of 4 h under reflux .