溴酸

METHODS Ammonium sulfamate and 1 mol·L -1 hydrochloric acid were added to the benzalkonium bromide solution,which was a reference solution.

取浓度相同的两份苯扎溴铵消毒液，一份加入氨基磺酸铵和 1mol·L-1盐酸作为参比液，在 35 4 6nm测定亚硝酸钠的ΔA。

The micelle shape transformation of tert-octylpheny phenol polyethylene glycol ether (TX-100), sodium dodecyl benzene sulfonate and tetradecyl trimethyl ammonium bromide in heavy water solutions was studied by 1H nuclear magnetic resonance spectroscopy, including an NMR self-diffusion experiment. These experiments showed that the surfactants formed several shapes of micelles (spherical, ellipsoidal, and rodlike) at the respective concentrations which were far above their critical micelle concentration.

运用核磁共振一维氢谱和自扩散实验方法研究了聚乙烯乙二醇异辛酚醚(TX-100)、十二烷基苯磺酸钠和十四烷基三甲基溴化铵三种不同类型的表面活性剂在重水溶液中的胶束形状转变，发现它们在临界胶束浓度以上的各自相应浓度都有胶束形状的变化（由球状转变为椭球状或棒状）。

Nickel sulfate was the most frequent sensitizer, followed by Thimerosal, Potassium dichromate, Fragrance mix and Formaldehyde. Frequencies of contact allergy to Thiuram mix, Mercapto mix, Imidazolidinyl urea, and bronopol were relatively low.

结果： 1 129 例受试者中，阳性反应747例，阳性反应率较高的变应原依次是：硫酸镍、硫柳汞、重铬酸钾、芳香混合物、甲醛，阳性反应率较低的变应原有：秋兰姆混合物、硫氢基混合物、咪唑烷基尿素、溴硝丙二醇。

It was feasible to increase the dispersing stability of the Ni-nano-Al2O3 composite plating solution by introducing the dispersants such as ammonium polycarboxy-late, triammonium citrate, and cetyl trimethyl ammonium bromide and implementing ultrasonic stirring.

结果表明，在镀液中加入适量的聚羧酸按、柠檬酸三按或十六烷基三甲基溴化铵分散剂，并通过超声分散，可得到稳定分散10h以上的复合电镀液。

Catalyzed by indium tribromide as a Lewis acid catalyst, this reaction was completed smoothly in green solvent ethanol.

我们采用三溴化铟作路易斯酸催化剂，在绿色溶剂乙醇中顺利实现了该反应。

Tri-cyanurate as a excellent additional retardant was synthesized by using cyanuric chloride_3,tribromophenol as main materials and under the condition of sodium hydroxide,dichloromethane,toluene as solvent respectively.

以三聚氯氰3和三溴苯酚为主要原料，在碱性条件下，分别以二氯甲烷、甲苯作为溶剂，合成了一种性能优良的添加型阻燃剂三三聚氰酸酯。

C. Organic intermediate products: P-Methylbenzonltrile, P-Bromobenzoin acid, 3,5-Dimethylbenzoic acid, P-Ethylbenzoic acid, 1,3,5-Benzene Tricarboxylic acid, 1,4-Naphthalic acid.

C。有机中间体产品：对甲苯腈。对溴苯甲酸、3.5-二甲基苯甲酸、对乙基苯甲酸、均三苯甲酸、KCB酸。

First, the geometry optimization for 1-phenyldibenzophosphole and triphenylphosphine were carried out using quantum chemical AM1 method.

用量子化学AM1方法优化了1-苯基二苯并膦和三苯基膦的几何构型，比较了两种化合物的电子结构和空间结构，发现PDBP作为羰基合成铑膦催化剂的配体要优于三苯基膦；系统研究了PDBP的合成方法，其最佳合成条件为：在无水无氧的条件下，采用二乙胺锂与溴化四苯基膦摩尔比为3，反应温度为22 ℃，反应5 h，反应后酸化， pH值为1～2，产物收率可达到85％～88％。

A monomer, trithiocarbonate anion is successfully"immobilized"onto the polymeric support by reaction of CS〓 with strong-base quaternary ammonium in anion exchange resin with OH〓 form.

研究了把CS〓离子固定到阴离子交换树脂上，以及它在CS〓悬浮体系中和另一单体，α，α'-二溴代二羧酸甲酯在阴离子树脂表面上进行的亲核取代反应。

In the reaction, industrial chlorinating agent and brominating agent with low cost and easy acquisition are used as oxidants to oxidize the ethyl lactate into the ethyl pyruvate.

反应中使用了廉价易得的工业用氯化剂、溴化剂作为氧化剂，将乳酸乙酯氧化为丙酮酸乙酯。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。