查询词典 bromide

Treatment of polystyrene-supported selenium ,bromide with lithium acetylides afforded polystyrene-supported selenoacetylene, which reacted with dicyclohexylborane giving a way for stereoselective synthesis of polymer-supported- vinylic selenides .

聚苯乙烯负载硒溴与炔基锂反应合成聚苯乙烯负载炔基硒醚，再与二环己基硼烷反应制得聚苯乙烯负载顺式烯基硒醚；此负载型烯基硒醚在NiCl2(PPh3)2存在下与格氏试剂发生偶联反应，提供了一种有效的-1，2-二取代乙烯的固相有机合成方法

One subject of the present work relates to a green chemistry synthesis of tetrabromobisphenol A wherein the combination of sodium bromide and sodium bromated as brominating agent which completely replaces conventional liquid bromine.

据文献报道，该产品在某些阻燃材料中将是十溴二苯醚的理想替代品之一，目前，仅有国外公司在销售该种产品，我国还没有实现真正的工业化生产，所以研制开发溴化环氧树脂阻燃剂具有重要意义，本文研究工作主要包括三方面的内容。

In chapter four, a real continuous-flow process for synthesis of alkyl bromides or cyanides was demonstrated by nucleophilic substitution reactions of tosylates with bromide and/or cyanide conducted in ionic liquid.

第四章：以离子液体中对甲苯磺酸酯的亲核取代反应为例，探讨了一种新型的&反应原料不断加入而反应产物可以得到即时分离&的连续化反应流程。

The invention uses the fermentation liquor of one Escherichia coli generating polysialic acid as material, filters and removes thallus, adds some solvents as sodium chloride and alcohol into supernatant to deposit polysialic acid, dissolves the polysialic acid deposits via deionized water, filters to remove modified protein, uses alkali prolease to treat filtrate, complexes deposits via cetyl pyridinium chloride or cetyltrimethylammonium bromide, and dissociates, uses over alcohol to deposit polysialic acid, dissolves the deposits via ultra-pure water, grades and purifies via chromatography column, collects and dialyzes eluent, cools and dries to obtain polysialic acid.

本发明以一株产聚唾液酸大肠杆菌的发酵液为原料，经过过滤去除菌体，上清液加入适量氯化钠和乙醇等溶剂沉淀出聚唾液酸，聚唾液酸沉淀用去离子水溶解，再用过滤去除变性蛋白质，滤液经过碱性蛋白酶处理、氯代十六烷基吡啶或十六烷基三甲基溴化铵络合沉淀并解离后，再用过量乙醇沉淀出聚唾液酸，聚唾液酸沉淀用超纯水溶解，用层析柱进行分级纯化，收集洗脱液经过透析，冷冻干燥得聚唾液酸产品。

Pathogens exist as spores or other dormant forms with the absence of host plants and they have high resistance, so high concentration of methyl bromide is required while fumigating. This is likely the main reason of the environmental pollution.

土壤甲基溴熏蒸的目标在于杀死具有较高耐药性的病源物的孢子或其他休眠形式，熏蒸所需浓度高，这也是造成环境污染的原因。

Studies on eyanogen bromide eleavaging at methionine residue and C. D data analysis of PCL indicated the dimensional structure is important for the maintenance of the hemagglutinating activity of PCL.

经胰蛋白酶水解，Bio-Gel P-4凝胶层析和HPLC分离，得到了PCL的酶解片段，用同位素标记的寡糖检测，这个片段具有糖结合活性。

Why, he is no more than a ponderous bromide, thanks to Gelett Burgess.

他们脑袋里就没有丝毫的独特见解。

Why, he is no more than a ponderous bromide, thanks to Gelett Burgess.

准确不过的自白。

OBJECTIVE:To study the response of inhalation doses of nebulized ipatropium bromide solution in treatment of COPD.

目的：明确雾化液吸入方式对慢性阻塞性肺病支气管扩张剂量反应。

Objective To investigate the effective and safety of nebulized budesonide suspension plus Albuterol and ipratropium bromide inhaled in treatment of attack of asthma in children.

目的 评价布地奈德雾化悬浊液联合复方异丙托溴铵溶液治疗儿童哮喘急性发作的临床疗效。

The small blue capacitor has very high chances to go fully shorted compare to electrolytic capacitor which is very rare.

小蓝电容器具有很高的机会去充分地缩短了比较电解电容器，这是非常罕见的。

In the Italian campaigns of 1513 and 1515, when the Swiss won the victories of Novara and Marignan, he acted as army chaplain.

在意大利的运动， 1513年和1515年，当瑞士赢得了胜利，诺瓦拉和marignan ，他担任军队的牧师。