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氟苯

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These result were needed to use Florfenicol canonically, reducing residue and degree of resistance strains development, prolonging the time of Florfenicol used.

这些结论,对于临床合理使用氟苯尼考,减少残留,延缓细菌耐药性增长速度,延长氟苯尼考临床使用寿命,具有一定参考价值。

CAR has high stereoselectivity for aromtic ketones such as acetophenone,2'-chloroacetophenone, 3'-chloroacetophenone, 4'-chloroacetophenone, 3-chloropropiophenone and2-chloro-2',4'-difluoroacetophenone.

羰基还原酶对芳香酮类化合物具有很高的立体选择性,对苯乙酮、2'-氯-苯乙酮、3'-氯-苯乙酮、4'-氯-苯乙酮、3-氯-1-苯丙酮和2-氯-2',4'-二氟苯乙酮还原产物的e.e。

One was HF/pyridine diazotization reaction at the 4-position of fluorene ring, and the other was Grignard reaction on the 9-position with Grignard reagent of pentafluorochlorobenzene.

使用HF/吡啶法在芴环的4位引入了氟原子,使用五氟氯苯格氏试剂在芴环的9位引入了全氟苯,合成了五个氟取代三联(9,9-二苯基)芴化合物。

The results showed that under different doses the hemolytic index of the gelatin microspheres was lower than 5%, so it did not have significant toxicity; primary skin irritation test showed there were no erythema, eschar and edema of 10% florfenicol gelatin microspheres injection; the LD50 of the microspheres was 2.226 7 g/kg and its 95% credibility limit was 1.950 2~2.635 6 g/kg.

实验结果显示,不同剂量的肺靶向氟苯尼考明胶微球注射剂的溶血指数均小于5%,无明显毒性;10%氟苯尼考明胶微球注射剂对受试动物皮肤无明显刺激作用;肺靶向氟苯尼考明胶微球对小鼠的LD50为2.226 7 g/kg,LD50 95%的可信限为1.950 2 ~2.635 6 g/kg。

So it has made the great progress. The method studied in this research from o-Dichlorobenzene is a ideal route to synthesize 2,4- dichlorofluorobenzene, which has temperate condition easy to control,safe process,low cost and good quality of products; The method of Phase transfer catalysis fluorination without solvent is better than present technology in presence of DMSO as solvent in many aspects; In a word,it is worth being promoted by the domestic correlative factories.

本课题所研究的以邻二氯苯为原料的2,4-二氯氟苯合成路线反应条件温和,工艺容易控制,生产安全,而且产品质量好,是比较理想的合成路线;以季胺盐为催化剂的无溶剂相转移催化氟化法与溶剂法相比具有明显的优势;通过实验确定的工艺条件对工业化生产有重要的指导意义,可提高以邻二氯苯为原料的工艺路线的市场竞争力。

The synthetic application of bromodifluoromethyl phenyl ketone was studied in this dissertation. It consists of two chapters.

中文摘要本论文对溴二氟苯乙酮在含氟化合物合成中的一些应用进行了探索,共分为两个部分:第一部分考察了溴二氟苯乙酮与羰基化合物的反应。

The construction in the future: 6 produce 10000 tons of HFC-152a, the substitute of ODS and 4000 tons of HCFC-142b a year; 7 produce 7000 tons of HCFC-123 and 3000 tons of-113a; 8 build PEVE rosin production with annual output of 5000 tons; 9 produce 3000 tons of PVDF a year; 10 produce 2000 tons of fluorobenzene and 1000 tons of dichlor fluorbenzene a year; and 11 fluoride salt combine device with annual output of 3000 tons.

远期建设:6、ODS替代品HFC-152a年产1万吨联产HCFC-142b4000吨;7、年产HCFC-123产品7000吨、联产二氯三氟乙烷-113a产品3000吨;8、年产PEVE树脂5000吨生产线;9、年产3000吨PVDF氟碳涂料树脂;10、年产2000吨氟苯,二氯氟苯1000吨;11、年产3000吨氟化盐联产装置。

The degradation of fluorobenzene by using ozonation process was studied, and the influences of pH value, initial concentration of fluorobenzene, ozone flux and reaction temperature on the reaction kinetics were investigated.

采用臭氧法降解含氟苯模拟废水。研究了氟苯降解的影响因素和动力学,考察了反应液初始pH值、反应物初始浓度、臭氧投量、反应温度对臭氧氧化降解氟苯反应速率的影响。

The method of using fluorine hydride to produce fluorobenzene is the best method,which overcomes the shortcoming of the Schiemann method,it can make the cost lower,reduce waste gas and raise recovery rate.

用无水氟化氢法生产氟苯是国内外最先进的方法,它克服了传统席曼法的缺点,它的显著优点是使成本降低、废气减少、收率提高,本文介绍了生产氟苯的两种主要方法的合成原理,重点介绍了无水氟化氢法生产氟苯的生产工艺过程及对所产生的废酸、污水、废渣的处理。

Huapai products:pchlorophenol,ochlorophenol,2,4dichlorophenol,2,6dichlorophenol,2,4,5trichlorophenol,2,4,6trichlorophenol,4chloro2benzyl phenol,pbromophenol,2,4,6tribromophenol,1chloro4(1,1dimethyl ethyl) benzene ether,3bromoanisole,mbromofluorobenzene,2tetra hydrofuran,αbromo4chloro acetophenone,αbromo4methoxy acetophenone,4chloro benzophenone,4chloro2methylaniline,n(2hydroxyethyl)ethane diamine; n(2aminoethyl)ethanolamine,2,3dibromopropionyl chloride,4bromo benzene sulphonyl chloride,terephthaloyl chloride,isophthaloyl chloride,nchlorosuccinimide,nbromosuccinimide,pchloranil;tetrachloro1,4benzoquinone,5chloroisatin.

华派公司产品:对氯苯酚,邻氯苯酚,2,4二氯苯酚,2,6二氯苯酚,2,4,5三氯苯酚,2,4,6三氯苯酚,4氯2苄基苯酚,对溴苯酚,2,4,6三溴苯酚,对氯苯基叔丁基醚,间溴苯甲醚,间溴氟苯,α溴甲基四氢呋喃,α溴代4氯苯乙酮,α溴4甲氧基苯乙酮,4氯二苯甲酮,4氯2甲基苯胺,N(2羟乙基)乙二胺, 2,3二溴丙酰氯,对溴苯磺酰氯,对苯二甲酰氯,间苯二甲酰氯,N氯代丁二酰亚胺,N溴代丁二酰亚胺,四氯苯醌,5氯靛红。

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推荐网络例句

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。

After an hour and no pup, look for continued contractions and arching of the back with no pup as a sign of trouble.

一个小时后,并没有任何的PUP ,寻找继续收缩和拱的背面没有任何的PUP作为一个注册的麻烦。