溴量法

Based on the catalytic effects of trace formaldehyde on the reaction between potassium bromate and oxidized azur A,a new catalytic spectrophotometric method has been developed in this paper.

基于在一定温度和硫酸介质中，痕量甲醛对溴酸钾氧化天青A 有较强的催化作用，建立了测定痕量甲醛的新的催化光度法。

Trace bromate in drinking water was determined by ion chromatography with suppressed conductivity detector.

摘 要：采用抑制电导离子色谱法检测饮用水中的痕量溴酸盐。

The kinetic parameters of vanadium catalytic oxidation of azomethine H by bromate have been determined by using spectrophotometric method .

以酸性介质中痕量钒催化溴酸钾氧化甲亚胺 H显色反应为对象，利用光度法研究了反应的动力学参数。

Objective: To develop a method for the determination of trace bromate in drinking water by high performance ion chromatography with large volumn direct injection.

目的：建立一种简单快速，采用直接大体积进样，电导检测饮用水中痕量溴酸盐的高效离子色谱法。

Based on the inhibitory effect of trace Ti on the oxidation of fuchsin acid by potassium bromate,a new kinetic spectrophotometric method for the determination of trace Ti has been developed.

利用Ti对溴酸钾氧化酸性品红的抑制作用，建立了动力学光度法测定痕量Ti的新方法。

It is based on the facts that in the presence of sulfuric acid and sodium dodecyl benzene sulfonate, vanadium activated by vitamin C can catalyze potassium bromate to oxidize safranine O, the oxidation products of safranine O can emit intense and stable fluorescence on nitrocellulose membrane.

基于在硫酸介质和十二烷基苯磺酸钠存在下，抗坏血酸活化钒催化溴酸钾氧化番红花红O发射强而稳定的荧光的特性，建立了ⅤC活化溴酸钾氧化番红花红O催化荧光法测定痕量钒的新方法。

Iodimetry is a simple and accurate method that is used to measure active composition in chlorobromoisocy anuric acid smokes.

介绍了一种准确简便的测定氯溴异氰尿酸烟剂中的有效成份的分析方法——碘量法。

The method is based on the cobalt catalyzing oxidation of bromocresol purple by hydrogen peroxide in the media of ammonia water using potassium chloride as an activator.

研究了在氨水溶液介质中，以氯化钾溶液为活化剂，痕量钴离子催化过氧化氢氧化溴甲酚紫褪色的指示反应，通过测量590 nm处溶液吸光度的改变，建立了催化动力学光度法测定痕量钴的新方法。

A new oscillographic potentiometric kinetic method for determining super trace aromatic amine was developed, based on the brominating reaction of aromatic amine and bromine.

将动力学分析法与示波电位法相结合，利用KBrO3与KBr的反歧化反应和溴代反应体系，提出了测定痕量芳胺的新方法。

According to the Box-Benhnken design principle,the method of response surface method with 3 factors and 3 levels was used. The factors influencing the technological parameters were determined by means of regression analysis. Response surfaces were finally graphed with the yield as the response value. The synthesis conditions were optimized as follows:reaction reagent was NBS,stoichiometric proportion between NBS and anhydrovinblastine was 1.07; the dosage of TFA was 22 mL/L; reaction temperature was －68 ℃ and duration was 90 min.

在单因素实验基础上，根据Box-Benhnken实验设计原理，采用三因素三水平的响应面分析法，研究了各个因素及其交互作用后，得到了合成7′-Br-脱水长春碱的最佳工艺条件：以二氯甲烷为溶剂，采用NBS为溴代剂，其用量与底物的物质的量比为1.07∶1，TFA的加入量22 mL/L，在－68 ℃下反应90 min，终止反应后，得到卤代产物。

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。