organic bases 的翻译结果

  本文关键词：有机碱改性TS-1的表征及其甲乙酮氨氧化性能的研究，，由笔耕文化传播整理发布。

 在分类学科中查询

所有学科

化学

organic bases

     At the same time, the distributions of the particulate fractions were accomplished. The results showed that the percentages of organic acids, organic bases, aliphatic compounds, aromatic compounds, moderately polar neutral compounds and highly polar neutral compounds in the SOF from the DI diesel engine were 11.64%,15.21%,12.32%,9.97%,41.35% and 9.51% respectively.

     试验结果表明,对于直喷式柴油机,有机酸、有机碱、脂肪烃类有机物、芳香烃类有机物、中极性有机物和高极性有机物6种组分在SOF中占有的比例分别为11.64%)〗、15.21%、12.32%、9.97%、41.35%和9.51%.

短句来源

     Characterization of Titanium Silicalite-1 Modified by Organic Bases and Its Performance in Ammoxidation of Methyl Ethyl Ketone

     有机碱改性TS-1的表征及其甲乙酮氨氧化性能的研究

短句来源

     The addition of organic bases such as trihydroxymethyl aminomethane and triethylamine at a concentration of 10% based on the oil mass to the reaction system can not only speed up the reaction,but improve the ME yield as well,with ME yields being 85.9% and 80.8%,respectively,after reaction for 12 h.

     在反应体系中添加适量(油重的10%)的有机碱三羟甲基氨基甲烷或三乙胺可有效提高酶促高酸废油脂的酯交换反应速率和甲酯产率,使反应12 H后的甲酯产率分别达到85.9%和80.8%;

短句来源

     The soluble organic fractions(F0) in diesel exhaust were classifiedinto organic acids(F1), organic bases(F2), aliphatic compounds(F3), aromaticcompounds(F4), moderately polar neutral compounds(F5) and highly polar neutralcompounds(F6) by silica gel column chromatography and chemical methods.

     对萃取出的有机可溶成分（用F0表示）采用硅胶柱色谱法和化学方法分为有机酸、有机碱、脂肪烃类有机物、芳香烃类有机物、中极性有机物和高极性有机物六大类（分别用F1~F6表示）。

短句来源

     A series of six-coordinated complexes was prepared in solution by reaction of para-substituted meso-tetraphenylporphinatoiron (Ⅱ) nitrosyl (abb. as [T(p-NO_2)PP]Fe (Ⅱ) (NO)) with some organic bases. The factors affecting the stability of title comphxed were studied.

     用有机碱与亚硝酰基·四(对-硝基)苯基卟啉铁(Ⅱ)反应制备了系列六配位配合物(简称[T(p-NO_2)PP]Fe(Ⅱ)(NO)(B))。

短句来源

更多       

     The reactions of a new tailed porphrinmangaanese complex, meso-mono-[o- (4-diethy-lamino)butyramidophenyl]triphenylporphyrin manganese ( Ⅲ ) chloride, PMn ( Ⅲ )Cl, with organic bases were studied and the equilibrium constants of the axial addition reactions for these bases to PMn( Ⅲ )C1 in benzene were measured by spectral technique.

     采用光谱技术研究了一种新型尾式锰(Ⅲ)卟啉——氯化meso-—[邻-(4-二乙胺基丁酰胺基)苯基]三苯基卟啉合锰(Ⅲ)[筒作PMn(Ⅲ)C1]与有机碱的轴向反应,通过光谱滴定法测定了轴向反应在苯溶剂中的平衡常数.

短句来源

     THE AXIAL REACTION OF COBALT(Ⅱ)TETRAKIS(4-TRIMETHYL AMINO PHENYL)-PORPHYRIN IODIDE HYDRATE WITH ORGANIC BASES

     碘化四-(4-三甲胺苯基)卟啉合钴与含氮有机碱的轴向配位反应

短句来源

     By using the monolayer adsorption maxima of methyl red and p-NDMA, the specific surface area of the minerals and the effective adsorption area per molecule, the external surface coverages of the four minerals by the two organic bases were calculated.

     根据单分子层最大吸附量 ,矿物的比表面积及非垂直定向时一分子有机碱的有效占有面积 ,计算了四种粘土矿物表面甲基红和N ,N -二甲基 -4 -亚硝基苯胺的覆盖率。

短句来源

     It is also suitable for the determination of some other inorganic bases and organic bases.

     该法也适用于其它无机碱、有机碱的测定

短句来源

     Adducts of the complexes with nitrogen-containing organic bases were studied by spectroscopic titration method.

     用光谱滴定法研究了配合物与含氮有机碱的加合反应和性质。

短句来源

更多       

     HEATS OF INTERACTION OF ORGANIC BASES WITH POLYMER PROTECTED CATALYST PVC-AlCl_3

     HEATS　OF　INTERACTION　OF　ORGANIC　BASES　WITH　POLYMER　PROTECTED　CATALYST　PVC－AlCl＿3

短句来源

     It indicated fromthe action of weak organic bases that PSP reac-tion was dependent on the [H_(?n)~+] and amplitudeof ΔpH.

     讨论了PSP反应对[H_(in)~+],ΛpH幅度大小的依赖关系。

短句来源

     Heats of immersion into a series of organic bases at 25℃ are reported for Polymer protected catalyst PVC-AlCl3. There is a good correlation between the heats of immersion of PVC-AlCl3 and thermochemical measurements of BF3 or SbCl5. The results have shown that the reaction of PVC-AlCl3 with various bases is essentially Lewis acid-base interaction and the surface acidity of PVC-AlCl3 is mainly attributed to Lewis acidity

     HEATS　OF　INTERACTION　OF　ORGANIC　BASES　WITH　POLYMER　PROTECTED　CATALYST　PVC－AlCl＿3HEATSOFINTERACTIONOFORGANICBASESWITHPOLYMERPR. .

短句来源

     In the presence of 0.15mol/L of sodium dodecyl sulfate (SDS), laurylsulfonic acid sodium salt (LAS), dodecylbenzenesulfonic acid sodium salt (DBS), the weakly organic bases of dimethyldodecylamine, dimethyloctadecylamine, diethanoidodecylamine and diethanoloctadecylamine can be directly titrated with 0.1 mol/L hydrogen chloride and good shapes of titration curves are obtained.

     在0.15mol/L的SDS、LAS、DBS表面活性剂存在下,有机弱胺:二甲基十二胺、二甲基十八胺、二羟乙基十二胺和二羟乙基十八胺可用盐酸直接滴定,获得良好滴定曲线。

短句来源

     24 new l-acyl-2-phenoxymethyl benzimidazoles and derivatives of 1-phenoxyacetyl imidazole have been prepared by the reaction of 2-sub-stituted benzimidazoles or imidazole with acyl chloride in the presence of organic bases such as trithylamine, pyridine or imidazole itself.

     2-取代的苯氧甲基苯并咪唑、咪唑分别与酰氯在缚酸剂存在下反应,制备了24个新的1-酰基2-苯氧甲基苯并咪唑及1-苯氧乙酰咪唑衍生物.

短句来源

更多       

查询“organic bases”译词为用户自定义的双语例句
    我想查看译文中含有：的双语例句

为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法，我们为您准备了出自英文原文的大量英语例句，供您参考。

  organic bases

Adsorption of Organic Bases from Aqueous Solutions on Magnesium Oxide

It was established that the energy of adsorption of organic bases depends linearly on the effective charge of their nitrogen atoms.

This result is consistent with a model of dissolution of vitreous semiconductors in organic bases (amine) according to which the fundamental properties of bulk glasses remain unchanged upon formation of the films.

The effect of a lipophilic ionic additive, a tetradecylammonium salt of a liquid ion exchanger, on the selectivity of ion-selective electrodes (ISEs) for cations of nitrogen-containing organic bases was studied.

It was demonstrated that in the presence of organic bases (2,2'-dipyridyl and 1,10-phenanthroline) mixed-ligand complexes are formed and the luminescence intensity of terbium(III) increases by a factor of up to 250.

更多          

In this paper, the visible absorption spectra of the reineckates of hetrazan and piperazine citrate in acetone were studied and found to be similar to that of the reagent itself rather than of the organic bases. The molecular composition of the reineckates has been confirmed by molecular weight determination. Furthermore, the solubility (in water) and the gram-molecular extinction coefficient of the reineckates were also determined. Based on these experiments and the red colour of the reineckates...

In this paper, the visible absorption spectra of the reineckates of hetrazan and piperazine citrate in acetone were studied and found to be similar to that of the reagent itself rather than of the organic bases. The molecular composition of the reineckates has been confirmed by molecular weight determination. Furthermore, the solubility (in water) and the gram-molecular extinction coefficient of the reineckates were also determined. Based on these experiments and the red colour of the reineckates in acetone, a colorimetric method for the estimation of hetrazan, piperazine citrate, and most of their preparations is proposed. In comparsion with the solvent extration or gravimetric procedure, it is simple, rapid, and accurate, which is therefore quite suitable as a routine method for quality control purpose.

本文对硫代氰酸铬铵与海群生及驱蛔灵形成的沉淀的组成、沉淀的吸收光谱曲线、克分子吸收系数及水中溶解度等进行了系统的试验研究,并拟订了适用于此两药物及其制剂的比色测定方法.

In presence of certain catalysts, such as organic peroxides, organic bases, platinium or other metallic compounds, or in absence of catalysts but being radiated by ultraviolet light or γ-rays, or simply by heating under higher pressure, silanes of the type, RR＇R＇＇SiY, where R＇S may be alkyl, aryl or alkoxy groups or halogen atoms and Y may be either a hydrogen or an alkalie metal atom, can be added to the unsaturated compounds containing carbon-carbon or carbon and other elements(such as oxygen or nitrogen)multiple...

In presence of certain catalysts, such as organic peroxides, organic bases, platinium or other metallic compounds, or in absence of catalysts but being radiated by ultraviolet light or γ-rays, or simply by heating under higher pressure, silanes of the type, RR＇R＇＇SiY, where R＇S may be alkyl, aryl or alkoxy groups or halogen atoms and Y may be either a hydrogen or an alkalie metal atom, can be added to the unsaturated compounds containing carbon-carbon or carbon and other elements(such as oxygen or nitrogen)multiple bonds to form the coresponding substituted silanes. The manipulation of the reactions are relatively Simple and the yields of the reaction products are often fairly good and in some occasions even quantitative. Thus, it may be a hopeful way to synthesis various valuable monomers of organosilicon poly-mers through these reactions. In present review article, the literature data about this subject since the discovery of the reaction till 1961(and a few of 1962)have been collectec and discussed on a theoretical as well as a practical view.

硅烷类在过氧化物,紫外线,有机碱,铂,钯或其它金属化合物存在下,或在高温高压下,或以r-射线照射,能与烯烃或炔烃以及它们的衍生物进行加成得到对应的烃基硅化合物;其中以H Si X_3最容易进行加成,H Si R X_2,H Si R_2 X次之;H Si(OR)_3,H Si R_3(R=C_6H_5例外),Si X_4最难,不饱和烃中碳链分枝愈多,加成愈困难。催化剂中以铂催化剂(pt石棉,H_2 Pt Cl_6,pt/c)应用范围最广,催化效能最高,并且不致引起易聚合的烯烃发生聚合,硅烷与含碳氧或碳氮或氮氮双键进行加成反应时,硅烷基总是加在杂原子上。这个反应是制备含长链烃基,具取代基的烃基及(?)基硅烷类的捷便方法。配合我国硅有机聚合物的生产,这方面研究工作是亟待展开的,尤其硅烷与烯烃间的调聚反应,与那具有取代基烯烃及炔烃的加成反应特别值得令人注意。

The direct amperometric titration of amines with sodium tetraphenylborate solution based upon anodic depolarization at a dropping mercury electrode by the use of excess TPB titrant, was systematically investigated. The influence of various factors such as pH, volume of titration mixture, quantity of sample in a definite volume to be titrated were studied. Based upon the above observations, a method is proposed as follows: Pipette 0.5-2.0 ml (at a concentration of about 2×10~(-2)M) of samples of various...

The direct amperometric titration of amines with sodium tetraphenylborate solution based upon anodic depolarization at a dropping mercury electrode by the use of excess TPB titrant, was systematically investigated. The influence of various factors such as pH, volume of titration mixture, quantity of sample in a definite volume to be titrated were studied. Based upon the above observations, a method is proposed as follows: Pipette 0.5-2.0 ml (at a concentration of about 2×10~(-2)M) of samples of various amines into a 50 ml beaker and add 1% HAc to make a volume of about 10-20 ml. The dropping mercury electrode serves as the polarographic anode. Titrate the amines with 0.05 M standard Na-TPB solution (pH 8) at 0.18 V using the saturated NaCl bridge and S.C.E. as reference. After each addition, stir for one minute and allow the solution to obtain a steady current value, then record the galvanometric reading. The end point is graphically plotted with current versus milliliters of titrant; sharp breaks are obtained. The Na-TPB solution was standardized volumetrically by the standard mer- curic solution. Organic bases so determined include aniline, methyl aniline, diethylamine, ephedrine hydrochloride, dimethylaniline, trimethylamine hydrochloride, triethylamine hydrochloride, urotropine, and tetraethylammonium iodide. The relative error of this method is 2%. The more soluble salts of aliphatic primary amines such as methylamine, ethyl- amine, n-butylamine, and even in the case of ephedrine hydrochloride could not be ac- curately titrated. The application of this method to titrate the amines depend largely upon the structure of the amines and the solubility of amine-TPB salts. This method was also successfully applied to titrate the nitrogen containing drugs such as chlopromarzine, cinchophene, quinine sulphate, atropine sulphate, antipyrine, aminopyrine, rivanol, and strychnine.

本文研究了用pH8的四苯硼酸钠水溶液对胺类的直接电流滴定法.滴汞为阳极,饱和甘汞为阴极,以3％琼脂的饱和NaCl溶液为盐桥组成电解池.适宜的滴定条件是:外加电压+0.18伏;底液为pH 2-3的HAc-NaAc介质,而以1％HAc更为方便;滴定体积为10-20毫升.可测的浓度范围和胺类的四苯硼酸盐沉淀的溶解度有关:仲胺为1×10~(-3)-2×10~(-2M);叔胺为6×10~(-4)-2×10~(-2)M;季胺为4×10~(-4)×10~(-3)M;伯胺类不能测定.方法的相对误差因沉淀的溶解度而异,一般在2％以下.滴定时沉淀可不必分离,且无需除氧,操作步骤比较简易.

<< 更多相关文摘    

 相关查询

CNKI小工具

在英文学术搜索中查有关organic bases的内容

在知识搜索中查有关organic bases的内容

在数字搜索中查有关organic bases的内容

在概念知识元中查有关organic bases的内容

在学术趋势中查有关organic bases的内容

  本文关键词：有机碱改性TS-1的表征及其甲乙酮氨氧化性能的研究，由笔耕文化传播整理发布。