solvent ether
英 [ˈsɒlvənt ˈiːθə(r)]
美 [ˈsɑːlvənt ˈiːθər]
（二）乙醚
双语例句
- Methods: The As in the oil was extracted by the solvent of petroleum ether ( non-toxic level), and determined by spectrophotometry.
方法：分别以无毒级石油醚、盐酸作为溶剂和萃取剂，将油中砷萃取，以光度法测定其含量。 - Effect of Solvent on Synthesis of Allyl Glycidyl Ether under Phase-transfer Catalysis
溶剂对相转移催化合成烯丙基缩水甘油醚的影响 - The results showed that using solvent ethyl diol dimethyl ether, biflavone content in crude extractings is higher than that obtained by using other solvents.
结果表明：乙二醇二甲醚为提取剂，粗产品中双黄酮类成分较高； - Either methanol or other suitable solvent, such as ethylene glycol monomethyl ether, may be used as the diluent.
可能是甲醇或者其他合适的溶剂，例如二乙醇甲醚，可以用做稀释剂。 - Sample of eel-bone oil was extracted with a mixed solvent of ether and n-hexane and the extract was esterfied by KOH-CH_3OH. Then it was determined by capillary GC/ MS.
用乙醚／已烷混合溶剂抽提鳗鱼骨油，用KOH－CH3OH酯交换法甲酯化，以毛细管色谱／质谱方法测定脂肪酸的组成。 - We select solvent with acetone, the developing agent with petroleum ether and ethyl acetate ( volume ratio: 9:4), closure the thin board and determine by 269 nm.
选择了以丙酮为溶剂对样品进行溶解，以石油醚-乙酸乙酯（体积比9：4）为展开剂上行展开，密封展板后在波长269nm下进行测量。 - Water-Soluble Paper is alkalescent, white, insipidity and can swell in the neutral or alkaline solution. Furthermore, it can disperse in water under slight stir, but not be dissolved in the organic solvent, such as alcohol, ether, chloroform and so on.
水溶性纸偏碱性、白色、无味，在中性或碱性的溶液中能溶胀，稍微搅动能分散于水中，但不溶于醇、醚及氯仿等有机溶剂中。 - One new solvent free impregnating resin based on unsaturated polyester with modified diphenylene ether is prepared.
以改性二苯醚树脂为原料，合成了一种新颖不饱和聚酯型无溶剂浸渍绝缘漆。 - Electropolar solvent such as THF may destroy the polyetherimide layer, while non-electropolar solvent such as petroleum ether cannot solve vinyl acetic acid cobalt.
极性溶剂如四氢呋喃会溶解PEI层，而非极性溶剂如石油醚又不能溶解丁烯酸钴。 - Ethylene glycol tertiary butyl ether ( ETB) is a product with lower photochemical reactivity and can be an acceptable subst ituted solvent for ethylene glycol butyl ether in some applications.
乙二醇叔丁基醚（ETB）是一种具有低光化学反应性产品，在一些应用领域中可作为乙二醇丁醚（EB）的取代溶剂。 - The best extraction way of the pathotoxin produced by Pmg was to use the weak polarity organic solvent, especially ether.
大豆疫霉根腐病菌毒素的提取采取弱极性的有机溶剂萃取的方法比较理想，尤其是用乙醚萃取。 - A method was developed to determine gossypol content in methanol phase from treating cottonseed kernel by two-phase solvent ( methanol+ petroleum ether) extraction.
提出了紫外可见分光光度计测定双液相溶剂（甲醇相+石油醚）浸取棉仁的甲醇相中棉酚含量的方法。 - Experiment results showed that mixed solvent of isopropyl ether and phenol could promote the extraction of hydroquinone.
实验发现，异丙醚-苯酚复合溶剂对萃取对苯二酚有促进作用。 - Solvent Absorption and Crystallization Behavior of Poly ( aryl Ether Ketone) s Films
聚芳醚酮膜的溶剂吸附与诱导结晶行为 - The transesterification of CPBA and vinyl acetate were systematically studied Solvent test revealed that diisopropyl ether is the ideal solvent for this reaction system, and vinyl acetate is the second one to the best.
对CPBA与乙酸乙烯酯的转酯化反应进行了较为系统的研究。发现异丙醚是本反应体系的理想溶剂，乙酸乙烯酯其次。 - The method of extracting the auxin in seaweeds with organic solvent, separating and purifying the auxin by ether extraction method and column chromatography has been established.
确立了以有机溶剂提取海藻中的生长素，以乙醚萃取法和柱层析法对生长素进行分离纯化的方法。 - In the extracting study, it has showed hydrochloric acid-heat treatment is a simple, convenient and effective extracting methods is which was used to destroy the cell wall, and the extracting organic solvent is petroleum ether whose boiling range is 60~ 90 ℃.
研究中还找到一个简便有效的对β-胡萝卜素的提取方法，选用盐酸-热处理法进行细胞破壁，并选用沸程为60～90℃的石油醚进行萃取。 - Para-nitrotoluene-ortho-sulphonic acid was synthesized from para-nitrotoluene and concentrated sulfuric acid as raw material in the mixed solvents comprising naphtha solvent and petroleum ether by liquid phase sulfonation method.
利用液相烘焙磺化法，以对硝基甲苯为原料，在溶剂汽油和石油醚混合型溶剂中用浓硫酸磺化合成对硝基甲苯邻磺酸。 - The bioassay results indicated that the optimal solvent extracting active components was petroleum ether.
结果表明，石油醚为提取南欧丹参花活性成分的最佳溶剂。 - A study of solvent extraction of uranium and thorium with a crown ether carboxylic acid
用可离解冠醚萃取铀和钍的研究 - At last the compositions of carotenoid were analyzed. Different methods of breaking cell wall and extracting solvent were compared. The acid-heat method and the solvent of petroleum ether and acetone ( 1:1) were appropriate.
通过对不同破壁方法和提取溶剂的比较得到，最佳破壁方法是酸热法，最适提取溶剂为石油醚：丙酮（1：1）混合溶液。 - High performance industrial solvent& ethylene glycol monoalkyl ether carboxylates
高级工业溶剂&乙二醇单烷基醚羧酸酯 - The phase-transfer epoxidation of soybean oil with 30% hydrogen peroxide catalyzed by tungsten-based polyoxometallate complex without solvent and with petroleum ether as the solvent was studied and the effects of solvent, reaction time and catalysts on product were studied.
研究了无溶剂和石油醚作溶剂时，30%过氧化氢存在下过氧钨配合物催化大豆油进行相转移的环氧化，并考察了溶剂、反应时间和催化剂等因素对产物的影响。 - Water dispersions of epoxy resin with small particles from 87 to 104 nm were synthesized by the graft copolymerization of epoxy resin with methacrylic acid and styrene in a mixed solvent of propylene glycol monobutyl ether and butanol with a specific composition.
控制不同的反应条件，采用甲基丙烯酸、苯乙烯与环氧树脂在丙二醇丁醚/正丁醇溶剂中接枝共聚，合成了粒径在87～104nm范围的环氧树脂水分散液。 - The mixed solvent consists of solvent naphtha, decalin, and petroleum ether in a certain proportion, which was used to synthesize 3-sulfo p-anisidine by using p-anisidine as raw material.
用溶剂汽油、萘烷、石油醚按一定比例复配成混合型溶剂，以对茴香胺为原料，用该溶剂合成了3磺酸基对茴香胺，产品中不含致癌物。 - It is also showed that the strong base has some co-catalysis effect on reaction and the yield is also remarkably affected by solvent. The small molecule amine with ether bond is the best solvent for preparation.
另外，反应还强烈地受到溶剂的影响，实验表明反应在小分子醚胺中进行时，反应的转化率和收率都有明显的提高。 - In chapter two, a gas chromatography with direct injection was established to determine the content of the mixed solvent petroleum ether in Ibuprofen.
在第二章中首次建立了布洛芬原料药中混合物类型有机残留溶剂石油醚（90-120℃）的直接进样-气相色谱检测方法。