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硝基
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  “5硝基”译为未确定词的双语例句
     The color reaction of 2-(5-nitro-2-pridylazo)-5-methylaminoaniline ( 5-NO_(2)-PADMA) with copper was studied .
     研究了2 (5 硝基 2 吡啶偶氮) 5 二甲氨基苯胺(5 NO2 PADMA)与铜的显色反应。
短句来源
     A new dual-wavelength spectrophotometric method for the determination of copper with 2-(5-nitro-2-pyridylazo)-5-dimethylaminoaniline (abb. as 5-NO_2-PADMA) has been developed.
     研究了 2 ( 5 硝基 2 吡啶偶氮 ) 5 二甲氨基苯胺 ( 5 NO2 PADMA)与铜的显色反应 ,建立了双波长分光光度法测定铜的新方法。
短句来源
     the conditions of colour reaction of 1(5nitro2pyridylazo)2.7dihydroxynaphthalene(5NO 2PADN)with copper are reported.
     研究了用新试剂 1 (5硝基 2吡啶偶氮 ) 2 .7萘二酚 (5 NO2 PADN)分光光度法测定微量铜 ( )的适宜条件。
短句来源
     The influencing factors of reduction were studied and the optimum reaction conditions were obtained. Thus, the reaction was carried out at 95~100 ℃ for 7 h with n (Fe)/ n (nitro-compound)=5 and the nitro-compound of 0 .27 mol/L to get the highest yield of 78 .6%.
     通过考察还原剂、反应物浓度和反应时间对产物收率的影响得到最佳反应条件:温度95~100℃,n(铁粉)/n(硝基化合物)=5,硝基化合物浓度为0 27mol/L,反应时间为7h,收率达到78 6%。
短句来源
     The residues of furazolidone [3-(5-nitrofurfurylidenamino)-2-oxazolidinone] and its main metabolite 3-amina-2-oxazolldinone (AOZ) in tilapia were first studied by HPLC/MS .
     采取高效液相色谱(HPLC)与质谱(MS)连用技术研究呋喃唑酮[3 (5 硝基糠醛缩氨基) 2 唑烷酮]及其主要代谢产物3 氨基 2 唑酮(AOZ)在罗非鱼体内的残留规律。
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     5) The origin of the capital.
     5
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     5.In the experiment of temperature, relative M. aeruginosa, the competitive predominance of S.quadricauda and N.
     5..
短句来源
     Preparation of 5-Nitrosalicylic Acid
     5-硝基水杨酸的制备
短句来源
     Reviews on the Synthetic Methods of 5-Nitrosalicylaladhyde
     5-硝基水杨醛合成方法
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  5-nitro
The ability of 5-nitro-, 7-nitro-, and 5,7-dinitrobenzotetrazine-1,3-dioxides to generate nitric oxide (NO) and activate soluble guanylate cyclase was investigated.
      
All compounds used inhibited ADP-induced aggregation of human platelets with IC50 of 10.0, 1.3, and 2.0 μM for 5-nitro-, 7-nitro-, and 5,7-dinitrobenzotetrazine-1,3-dioxides, respectively.
      
The Cl- channel blockers, 5-nitro-2-(3-phenylpropylamino)benzoic acid (NPPB) and niflumic acid, completely suppress the germination with IC50 ~ 8 μM.
      
The electroreduction of methyl 5-nitro-4-oxopentanate was studied by means of a polarographic method and preparative electrolysis in acidic-alcoholic solutions.
      
5-Nitro-4-(phenylthio)phthalodinitrile and Octa-substituted Me
      
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p-Nitro-acetophenone was prepared by diazotizing p-amino-acetophenone in fluoroboric acid solution and replacing the diazonium fluoroborate group by the nitro group in presence of finely divided copper as catalyst. Yield 55-60%; m.p. 76-78℃. Recrystallization from alcohol gave a product of m.p. 80℃.

從乙醯苯胺、醋酸酐與氯化鋅作用,經水解後製得對胺基苯乙酮。在氟硼酸水溶液中重氮化之,再在亞硝酸鈉的水溶液中以銅粉為觸媒,將此重氮團置換成爲硝基,即得對硝基苯乙酮。

p-Nitrobromobenzene was prepared from the sodium salt of α-p-Nitrophe-nyl-β-acetyl-hydrazine by bromination and subsequent addition of copper catalyst.Similary,α-p-nitrophenyl-pyridine was obtained by adding pyridine instead ofcopper catalyst.

(一)α-对硝基苯-β-乙醯肼钠盐溴化后,加进铜催化剂,即有放氮效应,产品为对硝基溴苯。(二)用吡啶代替铜催化剂,亦放出氮气,产品为α-对硝基苯吡啶.

o-Nitrophenol,p-nitrophenol,4-nitro-2-methyl-phenol,2,6-dichloro-4-nitro-phenol,p-nitrosophenol,4-nitroso-2-methyl-phenol,α-nitroso-β-naphthol,p-hydroxy-azobenzenesulfonic acid and Orange Ⅱ were reduced satisfactorily to the corre-sponding aminophenolic compounds by glucose or invert sugar in alkaline solu-tion.m-Nitrophenol and 2,4-dinitrophenol gave negative results.Due to high yield and easy manipulation,this method may be used withadvantage in the laboratory preparation of aminophenolic compounds.

(一)葡萄糖或转化糖在碱性溶液中能把硝基酚类、亚硝基酚类及对磺酸苯偶氮酚类化合物还原成为相应的氨基酚类化合物。得到正面结果的有:阾硝基苯酚、对硝基苯酚、4-硝基2-甲基苯酚、2,6-二氯-4-硝基苯酚、对亚硝基苯酚、4-亚硝基-2-甲基苯酚、α-亚硝基-β-萘酚、对磺酸苯偶氮苯酚、橙Ⅱ等九种化合物。结果可称满意。(二)间硝基苯酚与2,4-二硝基苯酚在上述条件下,得不到相应的氨基酚类化合物。

 
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