查询词典 bromide

A selective and mild PS-DIB/ionic-liquid immobilized TEMPO catalytic oxidation procedure of alcohols to the corresponding aldehydes and ketones in ionic liquid BF4 at room temperature was developed. The oxidant PS-DIB was prepared via Iodation and acetylation of polystyrene resin. For the preparation of the ionic-liquid immobilized TEMPO catalyst, 4-(2,2,6,6-Tetramethyl-1-oxyl-4-piperidoxyl)butyl bromide was first synthesized from 2,2,6,6-tetramethyl-piperidin-4-ol-N-oxyl and 1,4-dibromobutane.

将聚苯乙烯树脂先碘化再乙酰基化，制得了负载型二乙酰氧碘苯(diacetoxyiodo polystyrene，PS-DIB)作为氧化剂。2，2，6，6-四甲基-N-氧自由基哌啶醇(2，2，6，6-tetramethyl-piperidin-4-ol-N-oxyl，TEMPO)与1，4-二溴丁烷反应生成4-溴丁氧基-2，2，6，6-四甲基-哌啶-1-氧化物，再与N-甲基咪唑发生季铵化反应，生成的溴化季铵盐与四氟硼酸钠进行离子交换制得氟硼酸型2，2，6，6-四甲基-N-氧自由基哌啶负载离子液体TEMPO-IL。

The interactions between a surface active imidazolium ionic liquid, 1-tetradecyl-3-methylimidazolium bromide (C14mimBr) and bovine serum albumin were investigated by surface tension, isothermal titration microcalorimetry, far-UV circular dichroism and fluorescence spectra.

不过对作者有以下建议：(1)作者应将研究这一问题的目的给予进一步说明，最好把研究问题的针对性明确，这样对本研究在理论和应用上的意义就更加明确。同时，对引言部分的引文应依据针对性问题进行必要筛选。

And Smakula was also involved in the development of crystals grown from solutions in a laboratory environment. By the end of the 1930's he had developed the first KRS five mixed crystal (thallium iodide-thallium bromide) which remains in use in infrared technology applications.

斯马库拉也参与了实验室环境下的人工水晶合成的技术研发，到二十世纪三十年代末，他就研发了第一种五种混合物的KRS混合水晶（含铊、碘化铊、嗅化物等），此种水晶现在还在红外技术中应用。

A light-sensitive coating on paper or film; consists of fine grains of silver bromide suspended in a gelatin

a。 乳剂质的，可榨出油来的，会流出乳状液的

A man-portable cooling system is presented in the dissertation, which is based on the well-known lithium bromide-water absorption cycle, combined with plate-fin, by taking advantage of the high rates of heat and mass transfer available in microchannels.

本论文在大家所熟知的溴化锂吸收式制冷装置的基础上，结合板翅式结构，利用其微通道传热传质系数高等特点设计了一套单兵便携式制冷装置，能够满足个人将它背负于身上达到制冷效果的要求。

Other liquids that are used in manometry are water, organic liquids and bromide compounds

压力计中所用的其它液体有水，有机溶液以及溴化物溶液。

Various inorganic acid, such as ammonium chloride, copper sulfate, aluminum sulfate, mercury chloride, cerium sulfate and cerium chloride, have been evaluated for copper powder, zinc powder, or tin powder-mediated allylation reactions of carbonyl compounds with allyl bromide in aqueous medium.

结果表明：在同样的反应条件下，与铜粉或锌粉作用的此类反应相比，锡粉能更好的作用羰基烯丙基化反应，并且该反应的产率都比较高；在同样的金属促进剂存在下，硫酸亚铈的促进性能是所有无机酸中最好的。 2、研究了二氧化碳促进羰基化合物烯丙基化反应。

While erthrocyte, hemoglobin and Hela cell were under oxidative damage induced by the hydrogen peroxide (H2O2) or tert-butyl hydroperoxide on different concentrations of dihydromyricetin, hemolysis rate of erythrocyte and methemoglobin converted from hemoglobin was estimated by ultraviolet-visible absorption spectroscopy. Whereas mmalondialdehyde from erythrocyte was measured by thiobarbituric acid colorimetry, the cellular viability of Hela cell was examined using MTT 3-(4, 5-dimethylthiazol-2-yl-2, 5-diphenyl tetrazolium bromide assay.

在不同的二氢杨梅素浓度下，用过氧化氢或过氧化特丁烷对红细胞、血红蛋白和Hela细胞进行氧化伤害，以紫外－可见光分光光度法检测红细胞溶血率和由正常血红蛋白生成的高铁血红蛋白，硫代巴比妥酸法测定红细胞中的丙二醛，MTT法检测Hela细胞的活力。

Although a new study confirmed that bromide to be apocryphal, it did find that we may only use 20 percent of the nerve cells in our midbrain to form memories.

尽管有新的研究证实大脑中溴化物是不存在的，但是研究仍然发现人类仅仅使用了20%的中脑神经元用于记忆。

In the Hanus method, an iodine bromide reagent is used instead of iodine monochloride.

在哈纳斯法中，溴化碘试剂代替氯化碘被使用。

We are forbidden from giving money to these shoeless, skinny children, as this will perpetuate begging.

向光着脚，骨瘦如柴的孩子施舍是不可以的，因为要招来无休无止的乞讨。

It would be hard not to fall victim to some sharpeyed policeman.

要想不被某个目光锐利的警察抓到，谈何容易。