在最佳条件下产品邻甲氧基二苯醚的收率可达到84.6%。
The yield of the product under optimum conditions was up to 84.6%.
当家具泡沫破裂的时候,往往会释放多溴二苯醚到房屋灰尘当中。
Furniture foam tends to release PBDEs into house dust when it breaks down.
介绍了表面活性剂烷基二苯醚二磺酸盐的合成、生产及应用情况。
The synthesis, production and application of the surfactant alkyl diphenyl ether disulfonate were reviewed.
达扬教授称,在欧洲,那些最可疑的多溴二苯醚七八年前就已被禁用。
In Europe the most suspect PBDEs have been banned for seven to eight years, says Dr Dayan.
用无溶剂结晶法纯制二苯醚,该方法具有高效、经济和洁净的特点。
Purification of diphenyl ether by crystallization without solvent is discussed. This method has provided with the characteristics of high efficiency, economy and cleanness.
妇女血液中的多溴二苯醚每增加10倍,她们的怀孕几率就下降30%。
Each ten-fold increase in a woman's blood was linked to a 30 percent decrease in her odds of getting pregnant.
由于多溴二苯醚影响人类健康的研究还刚刚起步,所以该项研究非常重要。
Because little work has been done on the effects of PBDEs on human health, this is an important study.
用于2006年1月1日前生产的产品、含有五溴二苯醚或八溴二苯醚的替换部件。
Replacement parts that contain the "octa" or "penta" mixtures of PBDE, and if the parts are used in a product manufactured before January 1, 2006.
几乎每一个接受测试的美国人体都有五溴和八溴二苯醚的痕迹,这两种物质是家具业用得最广泛的。
Nearly every American tested contains traces of penta and octa BDE, the two formulations most widely used in furniture.
以二苯醚与苯甲酰氯为原料,合成了一种新型的激光光敏刺——4 -苯氧基二苯甲酮(PBZP)。
A new photoinitiator, 4-phenoxy benzophenone (PBZP), was synthesized and characterized using diphenyl ether and benzoyl chloride as raw material.
村里超过97%的妇女血液中含多溴二苯醚,在同一个月里,多溴二苯醚含量高的妇女的怀孕数是低含量妇女的一半。
More than 97% of the women had PBDEs in their blood, and those with high levels were half as likely to conceive in any given month as the women with low levels.
应用研究表明,DBDPE可以完全替代十溴二苯醚(DBDPO),和三氧化二锑配合使用,具有良好的协同阻燃效果。
The application researchs showed that DBDPE can substitute DBDPO completely, and DBDPE has good flame retardant synergism with Sb2O3.
“多溴二苯醚含量的提升对于生育能力的下降是一个危险因素,”长期研究人类在阻燃剂环境中的生存状况的阿德诺博士说道。
"Elevated levels of PBDEs might be a risk factor for reduced fertility," said Schecter, who studies how people are exposed to the flame retardants.
讨论了十溴二苯醚(DBDPO)和八溴二苯醚(OBDPO)对低密度聚乙烯(LDPE)的阻燃性能和拉伸强度的影响。
The flame resistances and tensile strengths of decabromodiphenyl oxide (DBDPO) and octabromodiphenyl oxide (OBDPO), to low density polyethylene (LDPE) were researched.
除了生育影响以外,对于动物的测试还发现,多溴二苯醚会影响脑部发育和甲状腺激素,而该激素控制细胞的生长发育及人体其他机能。
In addition to reproductive effects, animal tests have found that PBDEs can alter brain development and thyroid hormones, which regulate growth and development of cells and many key bodily functions.
被测试的两种阻燃剂材料-五溴联苯醚(penta-PBDE)和八溴二苯醚(octa-PBDE)-自2006年起已在美国被禁用。
The two flame retardants tested – penta and octa PBDE – have been banned in the United States since 2006.
类似地,在过去的30年里,像我们知道的多溴二苯醚(PBDEs)等阻燃化学药剂也被广泛应用,但我们并不了解它们具有的其他功能。
Similarly, over the last 30 years flame-retardant chemicals known as polybrominated diphenyl ethers (PBDEs) have been widely used, although little is known about their broader effects.
“由于工业化国家的人处于多溴二苯醚遍布的环境中,即使受精力的小小下降都可能引起公共卫生的广泛影响,”科学家在他们的研究中说道。
“Because exposure to PBDEs is ubiquitous in industrialized nations, even small decreases in fecundability may have wide-reaching public health impacts,” the scientists said in their study.
“由于工业化国家的人处于多溴二苯醚遍布的环境中,即使受精力的小小下降都可能引起公共卫生的广泛影响,”科学家在他们的研究中说道。
"Because exposure to PBDEs is ubiquitous in industrialized nations, even small decreases in fecundability may have wide-reaching public health impacts," the scientists said in their study.
以愈创木酚为起始原料,采用各种不同的催化剂与溴苯缩合制备得到邻甲氧基二苯醚,并研究了碱、催化剂、反应温度、反应时间和加料方式各种因素对该反应的影响。
Methoxydiphenyl ether was synthesized from guaiacol by using various catalysts and bases. The influences of base, catalyst, temperature, time and the way of feeding on the reaction were studied.
在巴布亚新几内亚部分地区,青蒿醚加苯芴醇和二氢青蒿素加哌喹分别是治疗小儿恶性疟原虫疟疾和间日疟的最具成本效益的治疗方案。
A+L and DHA+PQ are highly cost-effective regimens for the treatment of paediatric P. falciparum and P. vivax malaria, respectively, in parts of Papua New Guinea.
间苯二酚二环氧醚胶粘剂是一种室温固化高强度胶粘剂。
Resorcin diepoxide ether adhesive is a high strength adhesive curing at room temperature.
在美国、日本的化妆品市场,至今仍将乙二醇单苯醚作为重要的杀菌剂。
So far the EPH is still used as an important disinfectant in the cosmetics market in America and in Japan.
采用微波辐射技术,以苯酚、氢氧化钾和氯化苄为原料,N, N -二甲基甲酰胺为溶剂合成了苄苯醚。
Using phenol and benzyl chloride as raw materials and n, N-dimethyl formamide (DMF) as solvent, benzyl phenyl ether was synthesized under microwave radiation.
在美国、日本的化妆品市场,至今仍将乙二醇单苯醚作为重要的杀菌剂。
The effectiveness of adding EPH in detergent and cosmetics used as disinfectant, preservative and deodorant is described in some examples.
着重讨论了DBP(邻苯二甲酸二丁酯)生产过程中,丁醇分子间脱水生成丁醚的副反应机理及危害,并找出了预防副反应发生的措施。
Discusses the mechanism and harmfulness of undesired formation of butyl ether by inter-molecular dehydration of n-butanol during DBP production. Preventive measures are also provided.
实验组经胃一次性灌入2 ,4-二氯苯基-P-硝基苯醚,对照组经胃灌入等量食用油。
In control group, the same dose of oil was given without 2,4 dichlorophenyl P nitrophenyl.
产品成分:去离子水、甘油、丁二醇、芦荟提取液、透明质酸、尿囊素、苯氧乙醇、维生素c乙基醚、PEG - 40氢化蓖麻油、EDTA -二钠、香料。
Ingredients: Deionized Water, Glycerin, Butanediol, Aloe Extract, ha, Allantoin, Phenoxyethanol, Ethyl Ascorbic Acid, PEG-40 Hydrogenated Castor Oil, EDTA-Disodium Salt, Essence.
为研究硫醇烯光固化组成物的反应机理,选用安息香双甲醚、安息香乙醚、安息香正丁醚、二苯甲酮和噻吨酮为光敏剂,用红外光谱法研究了硫醇烯的光化学反应动力学。
The kinetics of thiol-ene reaction is studied by Fourier Transform Infrared when benzoin dimethyl ether, benzoin ethyl ether, benzoin butyl ether, benzophenone and ITX were used as photosensitizer.
以大孔聚苯乙烯-二乙烯苯为基质,制备了两个系列化学键合聚乙二醇和脂肪醚聚合物小球固定相。
Two series of chemical bonded polymers of polyethylene glycol and aliphatic ether based on macroporous styrene-divinyl-benzene polymer have been prepared.
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