查询词典 acid reaction

In addition, Prescription for flourishing stomach could relieve the inflammatory reaction induced by NO, and prevent the gastric mucosa from damaging by oxidative nitrous acid, benefiting for preventing canceration.

欣胃方有降低NO的作用，可减少NO诱发的炎症反应，阻断过氧化亚硝酸对粘膜的进一步损害，对预防癌变有积极的作用。

A process for reducing nitryl with unstable guanyl on para-position of benzene ring into azyl features that active metal reacts on organic acid and solvent at ordinary temp. and pressure to reduce N-(2 or 3-M, 5 or 6-M',4-nitrophenyl)-N',N'-dimethyl acetamidine into N-(2 or 3-m, 5 or 6-M', 4-aminophenyl)-N',N'-dimethyl acetamidine, where M=H,-R,-OR,-COOR (R=H, C1-C6); and M'=H,-R,-OR,-COOR (R=H, C1-C6). Its advantages include reduced by-reaction and high reducting rate up to 80%-95%.

本发明是将苯环上对位带有不稳定脒基的硝基还原为氨基的方法，采用活泼金属，如：锌或锡，与有机酸和适当的溶剂，在常温、常压下发生反应，将N－（2或3－M，5或6－M＇，4－硝基苯基）－N＇，N＇－二甲基乙脒还原为N－（2或3－M，5或6－M＇，4－氨基苯基）－N＇，N＇－二甲基乙脒，其中M＝H，－R，－OR，－COOR（R＝H，C1－C6），M＇＝H，－R，－OR，－COOR（R＝H，C1－C6），减少了副反应，使还原收率达到80％以上，最高可达95％以上，更适用于工业化生产。

Polymarase Chain Reaction may be the better method of detecting M.tuberculosis than other methods and lead us to carry out a series of research on this problem. This thesis is composed of five parts:(1)systematic evaluation for the first time of the ability of five defferent PCR methods to detect M. tuberculosis;(2) using the endonuclease and southern blot by a radioactive and a nonradioactive labeled probe, to confirm the specificity of the PCR products and to analyse the sensitivity of detection by southern blot method using digoxigenin-labeled probe;(3) evaluation of acid-fast staining, bacterial culture and PCR for the detection of M. tuberculosis in sputum, pleural and peritoneal effusion samples;(4) The feasibility of PCR for detection of M tuberculosis on formalin-fixed paraffin embedded tissues;(5) 26 cases of sarcoidosis were retrospectively studiedwith PCR for M. tuberculosis and nontuberculosis Mycobacterium and the problems on histopatholoical diagnosis of sarcoidosis are discussed.

论文共分为五个部分，(1)首次系统地比较了五种不同引物序列的PCR检测结核杆菌方法的特异性和敏感性等情况；(2)利用限制性内切酶酶切分析和同位素及非同位素标记DNA探针进行Southern杂交的办法，分析PCR产物的序列与原设计是否相符及杂交检测PCR产物对提高检测结核杆菌敏感性的情况；(3)并对PCR用于快速检测临床标本中的结核杆菌进行了初步评价；(4)探讨了PCR用于检测石蜡包埋组织中结核杆菌的作用；(5)并利用PCR检测结核杆菌和非结核分枝杆菌的方法对26例原病理诊断为结节病的病例进行了PCR检测及组织病理学诊断的探讨。

Acid-catalytic reaction of phenol and octene was studied by CNDO/2-PMO method.

本文用CNDO/2-PMO方法研究了在酸催化下辛烯与苯酚的烷基化反应。

Melamine orthophosphate and melamine pyrophosphate are prepared by reaction of ammonium dihydrogen phosphate or sodium pyrophosphate with melamine and hydrogen chloric acid.

以磷酸二氢铵、焦磷酸钠、三聚氰胺及盐酸为原料，制备了三聚氰胺正磷酸盐和三聚氰胺焦磷酸盐。

The effect of various conditions on the reaction, such as solvent, temperature, the amount of catalyst, the concentration of hydrobromic acid, oxygen/air and so on, was studied.

在此基础上，系统地考察了溶剂、温度、催化剂用量、氢溴酸的浓度、氧气/空气等因素对芳香化合物氧化溴化反应的影响。

The calculated results show that Itaconic Anhydride is active to get electron,and oxygen atom in the acid anhydride group is the electrophonic reaction site.

计算结果表明：衣康酸酐分子容易得到电子，且酸酐氧基上氧原子是亲电反应的作用点。

The method is raw material with pyrimidine of 5- fluorine make water, after reacting with chloric second acid below the intention that changes potassium in oxyhydrogen, with complex intermediate body 2- amino - 5- is replaced - 1, 3, 2 Zun reaction makes 4- Sai target content, evaluate its to fight tumor active.

方法以5-氟尿嘧啶为原料，在氢氧化钾的功能下和氯乙酸反应后，和合成的中间体2-氨基-5-取代-1，3，4-噻二唑反应制得目标物，并评价其抗肿瘤活性。

The synthesis of glyoxylic acid by ozonization of maleate was studied, the influence of technological parameter on the reaction during ozonization process were investigated.

对马来酸酯臭氧化合成乙醛酸的技术进行了研究，重点考察了臭氧化过程中的工艺参数对反应的影响。

Results showed that advanced oxidation technique of ozonization has a good effect on removal of acid red B. After 30 min reaction with pH=7, up to 99.5% of color decay was obtained and chemical oxygen demand was 37.9%. If initial pH of the wastewater was increased to 11, the removal rate of COD was optimum.

结果 在pH=7的条件下，单一臭氧氧化30 min时，废水的色度和COD去除率分别为99.5%和37.9%；而废水的初始pH值控制在11左右时，COD去除率有较大提高。O3/H2O2氧化工艺，适宜的H2O2和O3物质的量比为0.6，氧化处理30 min废水的COD去除率可达53.5%。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。