去了碱的
- 与 去了碱的 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
I went around and clumb over the back stile by the ash-hopper, and started for the kitchen.
我绕到了后面,踩着碱桶旁边的后梯磴,朝厨房走去。
-
In order to verify nicotine effect to heart of rat , analyzing the electrograph Based on these results , it was demonstrated that nicotine can induce to release acetylcholine locally or act on muscarinic cholinoreceptor controlled by parasympathetic nerve .
为进一步确定烟碱对大鼠心脏的作用,对描记烟碱作用后大鼠心电图进行分析,发现烟碱能引起大鼠心电图显示较长的QT间期,增加了PR间期及T波面积,与肾上腺素或去甲肾上腺素引起的QT间期延长相似,且能被M受体阻断剂阿托品所阻断,说明烟碱能够诱导局部释放乙酰胆碱或者作用于部分副交感神经控制的毒蕈碱受体。
-
Experimental process: jing and 3- methyl -2- methyl ethyl ketonesynthesizes by the benzene zong; Again the glacial acetic acidcatalysis produces 2, 3, 3 - trimethyl - 3H - yinduo; Again has thealkylate response production yinduo iodide after the methyl iodide;The iodide takes off molecular HI under NaOH to become freejier thealkali; Adds 5 - nitryls salicylic aldehydes in the ethyl alcohol forthe solvent under if to respond finally produces 6 '- the nitryl yinduolin spiral benzene and pinan; Through the infrared spectrum andthe ultimate analysis irrevocably proved its structure, and studiedthe annulus with to open the annulus the light to send changes colorthe performance, explained in different solvent medium ultravioletabsorption spectrometry solvent effect, and the comparisondiscoloration the response speed number difference, finally mixed itadds to the methyl methacrylate, the peroxidation benzoin formyl in the plexiglass, tested 6 '- the nitryl yinduolin spiralbenzene and pinan in the glass fatigue resistance, thethermostability.
实验过程:由苯肼和3-甲基-2-丁酮合成腙;再冰醋酸催化生成2 ,3 ,3—三甲基—3H—吲哚;再经过碘甲烷发生烷基化反应生成吲哚碘化物;碘化物在NaOH下脱去一分子HI成为费歇尔碱;在乙醇为溶剂下加5-硝基水杨醛与其反应最后生成6'—硝基吲哚啉螺苯并吡喃;通过红外光谱和元素分析确证其结构,并研究了环体与开环体的光致变色性能,解释了在不同溶剂介质中紫外吸收光谱的溶剂效应,并比较褪色反应速率数的差异,最后将其掺加到甲基丙烯酸甲酯,过氧化二苯甲酰有机玻璃中,测试6'—硝基吲哚啉螺苯并吡喃在玻璃中的抗疲劳性、热稳定性。
-
A dye recycled photosensitization system has been designed. As a result of studies in the mechanism of electron transfer reaction of xanthene iodonium salt, it is proposed that the dye-recycled process consists of three-step reactions during the photosensitization: The oxidative fading product of dye is formed through electron transfer under irradiation; In the presence of H-donor, product changes into acidic leuco dye product; Product undergoes deprotonization under action of base to regenerate initial dye.
本文设计了染料循环再生的光敏反应体系,通过对占吨碘翁盐电子反应机制的深入研究,提出了占吨染料在光敏反应过程中的染料再生循环,它依次由三个反应过程组成:在光作用下,通过电子转移反应,产生染料氧化褪色体;在H给体存在下,通过H转移反应,使产物转化为染料酸式隐色体;在碱作用下,发生去质子反应,染料再生回复到染料的起始结构。
-
Starting from 3, 5-dihydroxybenzoic acid, a total of 16 kinds of salicylicaldehyde derivatives have been synthesized by the esterification, substitution, reduction, formylation, condensation, brominate, functional group protection and deprotection reactions, of which 11 have not been reported yet. Enatiomerically pure 2-amino-2'-hydroxy-1, 1'-binaphthyl has been easily obtained from its racemic mixture by the eantioselective formation of inclusion crystals with N-benzylcinchoninium chloride.
树枝状大分子希夫碱三齿手性配体的设计与合成从3,5-二羟基苯甲酸出发,通过酯化、取代、还原、甲酰化、缩合、官能团的保护与去保护等反应合成了四个系列16种水杨醛衍生物,其中11中是未见文献报道的新化合物。
-
The technique of extracting and refining mucopolysaccharide from Dasyatis akajei cartilage obtained was studied and the content of mucopolysaccharide was measured.
探索利用碱浸提和酶法去蛋白从赤魟软骨中提取分离纯化黏多糖的技术,并对该多糖进行了含量测定。
-
Secondly, the influences of pH value of buffer solutions on the dedolomitization of dolostone powders and the expansion of a reactive dolomitic limestone were investigated. A program was conducted to study the reaction and expansion of dolostone powders in compacts and pastes of cement, and that of dolomitic rocks with few clay and quartz in alkaline solutions and concrete.
第二部分研究了溶液pH值对白云岩粉料的去白云化反应速率及活性白云质灰岩膨胀速率的影响;分析了白云岩粉料在水泥压实体中、含很少粘土和石英的白云质岩石在碱溶液及混凝土中所发生的化学反应,并测定了伴随化学反应产生的膨胀。
-
A series of alkyl diphenyl ether were synthesized with low cost raw materials,diphenyl ether and aliphatic alcohol,catalyzed by concentrated sulfuric acid,and followed by sulfonation to produce MADS.On the basis of analysis and characterization,structure of the products was identified,effect factors of the preparation reactions were investigated and the optimum reaction conditions were obtained.2.The surface chemical properties of C_8,C_9,C_(10)-MADS were determined.
通过对产物的表征分析,对其结构进行了鉴定,并对合成反应的影响因素进行了分析讨论,优化了合成条件。2、测定了所合成的系列烷基二苯醚双磺酸钠C_8-MADS,C_9-MADS,C_(16-MADS的表面化学性能,结果表明:合成样品在质量分数高达10%的无机酸、无机碱及无机盐溶液中表面化学性能稳定,同时显示出优良的乳化性能和在硬水条件下较好的去污洗涤性能。3。
- 推荐网络例句
-
But we don't care about Battlegrounds.
但我们并不在乎沙场中的显露。
-
Ah! don't mention it, the butcher's shop is a horror.
啊!不用提了。提到肉,真是糟透了。
-
Tristan, I have nowhere to send this letter and no reason to believe you wish to receive it.
Tristan ,我不知道把这信寄到哪里,也不知道你是否想收到它。