dioxane
英
美
n. 二氧杂环乙烷
双语例句
- Ir-SP CTRA of dioxane lignins of seven important species in our country
我国七种重要材种的二氧六环木素的红外光谱 - The invention also relates to, in particular, compounds having two tetrahydropyrane rings or at least one tetrahydropyrane ring and a dioxane ring.
本发明特别涉及具有两个四氢吡喃环或者具有至少各一个四氢吡喃环和二韧榛返幕合物。 - The mechanism of anionic polymerization of isoprene with cyclohexane and dioxane as solvent was studied and improved by experiment.
推导了异戊二烯在环已烷-二氧六环混合溶剂中的负离子聚合机理，并通过实验进行了验证。 - Mechanism of anionic polymerization of isoprene in cyclohexane-dioxane
异戊二烯在环己烷-二氧六环中的负离子聚合机理 - The study of flame retardants on thermal degradation and charring process of dioxane lignin in the condensed phase
阻燃剂对二氧杂环己烷木质素的热降解行为和成炭过程的研究 - The synthesis of 1,4 dioxane from diethylene glycol using p toluene sulphonic acid as a catalyst was discussed.
利用二甘醇为原料，以对甲苯磺酸为催化剂合成了1,4-二氧六环。 - The method of liquid phase synthesis of dioxane from the cyclodehydration of diethylene glycol catalyzed by ASP-type solid acidic catalysts was studied.
研究了ASP型固体酸催化剂一缩乙二醇（二甘醇）环化脱水合成1,4-二氧六环的液相反应。 - Acetone and dioxane had active effects on the enzyme.
丙酮对酶有激活作用。 - The cosmetics were extracted with water and dioxane was dissolved completely.
样品用适量的水提取，将二恶烷完全溶解。 - The adsorption of BDMN and solvent ( dioxane) on the dropping mercury electrode has also been studied.
此外，对BDMN及二氧六环在汞电极上的吸附现象也进行了研究。 - Their quantum yields were about 0.4 in dioxane.
在二氧六环中它们的量子产率为0.4左右。 - The ultraviolet absorption spectra and molar extinction coefficient s, fluorescent spectra as well as quantum yields of nucleoside hydrazones in water, ethanol and dioxane were measured.
测定了在水、乙醇、二氧六环中的紫外吸收光谱与克分子消光系数以及萤光光谱和量子产率。 - The reaction of dioxane lignin and β-O-4 type lignin ortho-quinone model compound with hydrogen peroxide was tentatively studied in this paper.
对二氧六环木素及β-O-4型邻醌木素模型物与过氧化氢的反应进行了初步研究。 - The response of amperometric glucose biosensor in some typical hydrophilic organic media ( acetone, acetonitrile, dioxane, ethylene glycol) were examined.
本文研究了在几种典型的水溶性有机介质&丙酮、乙腈、二氧六环和乙二醇存在的条件下，电流型葡萄糖生物传感器的响应情况。 - Extraction in dioxane indicated that the hydroxymethyl lignin took part in the solidification reaction of novolac.
二氧六环抽提结果表明，羟甲基化木质素参与了固化交联反应。 - The fluorescence spectra of 4 methyl 7 diethylaminocoumarin ( coumarin 1) in cyclohexane alcohol, 1,4 dioxane water binary mixed solvents and cyclodextrin, surfactant aqueous solutions were studied in detail.
详细研究了香豆素－1在环己烷－醇、1，4－二氧六环－水二元溶剂及环糊精、表面活性剂溶液体系中的荧光光谱。 - Determination of Dioxane in Alkyl Alcohol Polyoxyethylene Ether
烷基醇聚氧乙烯醚中二恶烷的测定 - Pseudo water-soluble photosensitive epoxy-phenolic resin was synthesized using N, N-dimethylaniline to replace quaternary ammonium bromide as catalyst and toluene to partially replace dioxane as solvent.
用二甲苯胺取代溴化季胺盐作催化剂、用甲苯部分取代二氧六环做溶剂合成了准水溶性丙烯酸改性光敏酚醛树脂。 - The reaction conditions such as dosages of catalyst, 1,4 dioxane and water, solvent type, reaction temperature and time, adding method were also studied.
同时还研究了催化剂用量、1,4二氧六环的用量、溶剂种类、反应温度、反应时间、水量及加水方式等对该反应的影响。 - The experiments showed that the Mannich reaction in dioxane aqueous solution could improve the reaction efficiency obviously.
结果表明，Mannich反应在二氧六环水溶液均相介质中进行，可明显提高反应效率； - Studies on the pervaporation separation of dioxane/ water mixture by the sulfonated polyethylene ion-exchange membrane
磺化聚乙烯离子交换膜渗透汽化分离二氧六环／水混合物研究 - Gallic acid lauryl alcohol ester was synthesized from gallic acid and lauryl alcohol by direct esterification using solid super acid S_2O_8 2-/ ZrO_2 as catalyst in the solvent of dioxane.
以固体超强酸S2O82-/ZrO2为催化剂，以没食子酸和月桂醇为原料，二氧六环作溶剂，直接酯化合成没食子酸月桂醇酯。 - Dioxane has been frequently detected in river water, especially in ground water polluted by volatile halogenated hydrocarbons.
1,4-二恶烷经常会在河水、特别是地下水中被检测到，这主要是由于挥发性的卤代碳氢化合物造成的污染。 - Poisonous dioxane is liable to form over traditional acid catalysts;
使用传统的酸性催化剂，反应容易形成有毒物质二烷。 - Under the optimized reaction conditions of 0.2 MPa, 30 ℃ and using dioxane as solvent, the conversion of maleic anhydride and the selectivity of succinic anhydride are both up to 100% in 60 minutes.
研究表明，当采用1,4-二氧六环为溶剂，在0.2MPa和30℃的温和条件下反应60min，马来酸酐的转化率和琥珀酸酐的选择性均可达到100%。 - The fed-batch fermentation and regulation of guanosine were studied and the flow mode and concentration of Sodium Glutamate and Dioxane were established.
通过对鸟苷补料发酵和调控的研究，确立了谷氨酸钠和二恶烷的最佳流加方式和浓度。 - Classification results show that: the order of organic solvents on the solubility of lignin is dioxane acetone ethyl acetate methanol n-butanol.
结果表明：有机溶剂对木质素的溶解能力大小依次为二氧六环丙酮乙酸乙酯甲醇正丁醇。 - A temperature-induced morphological transition was observed in the dioxane/ ethanol system.
研究发现，在二氧六环/乙醇体系中囊泡存在温致形貌转变现象。