溴

It contains no chlorofluorocarbons, chlorine or bromine.

不包含氟氯化碳，氯或溴。

Summary Amounts of air pollutants, such as chlorofluorocarbons, nitrous oxides, methyl bromide and methane, were produced by industrial an...

人类活动和工业生产产生了很多污染物，诸如氯氟烃、氮氧化物、甲基溴化物和甲烷等，其中一氧化氮也是污染物之一。

This research used the optical frustrated total internal reflection by the coupling of prisms to excite surface plasma waves to measure the resonant angle of the chlorine and Halogen-methane (including the fluoromethane, chloromethane, bromomethane, and iodomethane).

中文摘要本论文是根据光受挫式内部全反射方法利用稜镜的耦合来激发表面电浆波，量测出氯气与卤族甲烷(氟甲烷、氯甲烷、溴化甲烷、碘甲烷)之共振角度。

The reactions between HSA and acidic phenolsulfonphthaleins, including phenol red, cresol red, chlorophenol red, bromocresol purple and m-cresol purple, have been investigated by fluorescence spectrometry.

在人体条件下，用荧光光谱法研究了苯酚磺酞类酸性染料苯酚红、甲酚红、氯酚红、溴甲酚紫、间甲酚紫与人血清白蛋白之间的相互作用。

Methods The method of GOD with 2,4,6-tribromo-3-hydroxybenzoic acid as a new chromogen was employed to make paper strips.

方法用2，4，6-三溴-3-羟基苯甲酸为色原的葡萄糖氧化酶法试剂制作试纸条，用CCD检测反应后的唾液葡萄糖检测试纸条的色度。

So the ester type cinchona alkaloid derivatives should be the preferable catalysts for the IFB reaction withβ-phenyl substituted bromoketones as substrate.

由此可知，这类以酯键形成的金鸡纳生物碱衍生物适于催化β-苯取代溴乙酰甲酸乙酯为底物的IFB反应。

Acording to the literature, we improved the yield of N- [4- benzy] cinchoninum bromide from cinchonine.

对光学活性的相转移催化剂N-4-碘苄基辛可宁溴酸盐的进行了改良合成。

A new chiral quaternary ammonium salt 1a was synthesized by the reaction of cinchonine and(2,4,6-)trimethyl benzyl chloride.Etherification between 1a and benzyl bromide,allyl chloride,or methyl give corresponding etherified quaternary ammonium salts 1b,1c,and 1d.

由辛可宁和2，4，6-三甲基苄氯，合成了一种新的手性季铵盐(1a)，并进一步用苄基溴、碘甲烷和烯丙基氯对分子中的羟基进行醚化，得到相转移催化剂1b、1c和1d。

The rheology and pressure drop of Tetra-n-Butyl Ammonium Bromide Clathrate Hydrate Slurry in horizontal pipe flow was investigated through a series of experiments.

通过水平管内四丁基溴化铵水合物浆的流动实验，对水合物浆的流变性和摩擦阻力特性进行了研究。

Hydrogen is referred to as H2. It is a colourless, odourless and tasteless gas.

氢气的分子式为 H2，它是一种无色、无溴和无味的气体。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。