三甲基甲硅烷基炔丙基溴的反应产物的产率为71%到84％。
The yields of products for the reaction of trimethylsilyl propargyl bromide are 71 to 84%.
溴的主要来源是海水和盐床。
本文介绍了氯化溴的应用领域及合成工艺。
In this paper, application and synthesis technology of bromine chloride are introduced.
溴的衍生物的活性要比相应的氯的衍生物大得多。
Derivatives of bromine are much more active than the corresponding one of chlorine.
改进了季戊四溴的合成方法，探索了反应发生的条件。
A method for synthesis of pentaerythrityl bromide and their reaction condition were exploded and improved.
本文介绍在新法合成CLT酸中，氨 解母液的预处理和溴的回收方法。
This paper relates to the pretreatment of the mother liquor of ammonolysis andbromic recovery method in the new synthesis method of CLT acid.
<正>将液相微萃取与循环伏安法相结合，建立了痕量溴的电化学分析的新方法。
The electrochemical properties of those compounds were studied by the cyclic voltammetry method.
在溴法合成香兰素新工艺中，用水蒸汽蒸馏法回收萃余相中的溴，降低了溴的消耗定额。
In the new process of synthesis of vanillin with bromine, the bromine in the wastewater is retrieved by steam distillation. As a result, the bromine consumption is reduced.
公开了从较高分子量的烃中除 去氢溴酸蒸气以及从用于该方法的氢溴酸产生溴的各种方法。
Various methods are disclosed to remove the hydrobromic acid vapor from the higher molecular weight hydrocarbons and to generate bromine from the hydrobromic acid for use in the process.
以异丙醇为柱前衍生试剂，建立了反相高效液相色谱法间接测定2-乙酰氧基异丁酰溴的新方法。
A rapid reverse high performance liquid chromatography method based on the iso - propyl alcohol as an agent of pre-derivatization is developed for the determination of 2-acetoxyisobutyryl bromide.
采用一种新方法测定了反应型含溴阻燃剂中溴的含量。实验证明，该方法简单易行，且精密度较高。
A new way is proposed to determine the content of bromine in reacting flame retardant containing bromine. This method is proved to be easy and of high precision.
他看到，如果你将氯的原子质量，加上碘的原子质量，除以，得到的数将与，溴的原子质量很接近。
He saw that if you take the atomic mass of chlorine, 2 add it to the atomic mass of iodine, divide by two, you get something that is really close to the atomic mass of bromine.
通过自制高效偶联试剂三三苯基膦氯化亚钴和自制金合欢基溴的还原偶联反应，成功地合成了角鲨烯。
Squalene was successfully synthesized from farnesyl bromide with the highly efficient reductive coupling reagent tri-triphenylphosphine cobalt chloride that was freshly prepared in the laboratory.
该工艺的改进提高了产品收率和溴的利用率，降低了废水产生量，从而降低生产成本，提高企业经济效益。
The process improvements to improve product yield and bromine utilization, reducing the amount of wastewater generated, thus reducing production costs and improve economic efficiency of enterprises.
应用纳米铟、铋、锡在水相中成功地促进了多种羰基化合物和巴豆基溴的丁烯基化反应，在短时间内得到了高产率的高烯丙醇。
Indium, tin and bismuth nanoparticles successfully mediated crotylation of carbonyl compounds in water to afford the corresponding homoallylic alcohols with good to excellent yields in a short time.
比较了氯乙酰氯和溴乙酰溴对中间体及硝基安定收率的影响。
The effect of chloroacetyl chloride and bromoacetyl bromide on yields of intermediates and nitrazepam was compared.
研究了一种简单而温和的合成芴醇的方法，可以选择性地获得9溴芴（9 BF）。
A simple and mild method for the synthesis of fluorenol was studied and 9 bromofluorene (9 BF) can be selectively obtained.
吸收工作场所空气中的四溴化碳。
通过表面张力法研究了二甲基亚砜（DMSO）对十六烷基三甲基溴化铵（CTAB）胶束形成的影响。
The effect of dimethyl sulphoxide(DMSO)on micelle conformation of hexadecyltrimethylammonium bromide(CTAB)was studied by means of surface tension.
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.
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.
如同所有的电视一样，液晶显示器的塑料外壳经过溴化阻燃剂处理，内部线路用了各种有毒重金属，如镉，铬，锑，铍。
As with all TVs, LCDs have plastic shells treated with brominated flame retardants and wiring that has various toxic heavy metals such as cadmium, chromium, antimony and beryllium.
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.
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.
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.
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.
“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.
“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.
“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.
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