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吸附电位
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  adsorption potential
     Studies on Adsorption Potential Stripping Analysis
     吸附电位溶出分析法研究
短句来源
     Determination of trace thallium by the adsorption potential stripping technique using a spheric mercury electrode
     球形汞膜吸附电位溶出法研究痕量铊
短句来源
     In this research, by potentiostatic square wave methods, We have respectively measured some organic surfactants in Zincate Znic-plating solution of different concentrations, ie DE, DPE—Ⅲ, KR—7, ZB—80, DE+DPE—Ⅲ, DPE—Ⅲ+KR—7 and DPE—Ⅲ+ZB—80, and Obtained the differential capacity—potential curves of these organic surfactants in 120g/L NaOH solutions on hanging mercury electrode. From these curves, we have compared with the ranges of adsorption potential, the strong or weak of adsorpition activity and the adsorption mechanisms.
     本工作用恒电位方波法,分别测量了在浓度为120g/L NaOH溶液中,含有不同浓度锌酸盐镀锌用的有机表面活性剂:DE、DPE—Ⅲ、KR—7和ZB—80以及DE+DPE—Ⅲ、DPE—Ⅲ+KR—7、DPE—Ⅲ+ZB—80在悬汞电极上的微分电容——电位曲线,从而比较了上列各种有机表面活性剂在悬汞电极上的吸附电位范围,表面活性大小和吸附机理。
短句来源
     There was a linear relationship between PCA concentration and the adsorption and desorption potential, but the PCA concentration had no effect on the range of adsorption potential.
     缓蚀剂浓度与吸附电位和脱附电位之间存在着良好的线性关系,但对吸附电位范围却无甚影响。
短句来源
     On the basis of geophysical logging principle, the methods for calculating the values of diffusion and adsorption potential and filtration potential of different kinds of reservoir were suggested and were applied to the correction of the distortion of SP logs.
     应用地球物理测井原理 ,提出计算不同类型油层扩散吸附电位和过滤电位的方法 ,用于校正自然电位曲线变异。 图 2表 2参 5
短句来源
  absorption potential
     The results show that the value of diffusion and absorption potential( E da ) increases when the ratio of formation water salinity to mud salinity( C w/ C m) increases.
     结果表明 :( 1)扩散吸附电位Eda随地层水矿化度与泥浆滤液矿化度比值 (Cw/Cm)的增大而增大。
短句来源
     Along with development of Daqing oilfield,the amplitude and configuration of natural potential of reservoir took place large variation in comparison with that in the initial stage of development, the change of the master-slave position of diffusion absorption potential and filtration potential constituted natural potential also took place.
     随着大庆油田的不断开发,其储层的自然电位与开发初期相比在幅度和形态上均发生了较大变化,构成自然电位的扩散吸附电位和过滤电位的主次地位也发生了转变。
短句来源
  “吸附电位”译为未确定词的双语例句
     Adsorption potentiometric stripping analysis and flow injection analysis were combined to enhance the sensitivity.
     利用具有高灵敏度的吸附电位溶出分析法与流动注射分析结合,使流动注射电位溶出分析灵敏度进一步提高。
短句来源
     A sensitive derivative adsorption chronopotentiometry methodfor the determination of ultratrace Fe(III) in KH 2PO 4 has been studied based on the formation of the complex Fe(III) with 2 (5′ bromo 2′ pyridylaze) 5 diethy lanminophenol (5 Br PADAP).
     利用Fe(III)和 2 (5′ 溴 2′ 吡啶偶氮 ) 5 二乙基氨基苯酚反应形成配位化合物为基础 ,研究一种灵敏的计时吸附电位法测定KH2 PO4 中超痕量Fe(III)含量。
短句来源
     The coefficient of diffusion-absorption potential has large dynamic range(2~39 mV).
     其扩散吸附电位系数在2~39 mV之间变化较大;
短句来源
     Experimental results indicated that the adsorption of cephalexin on hanging mercury electrode surface are in the potential range from +0.08Vto-1.35V(VS.SCE). The frumkin isotherm for adsorption was obeyed. The adsorption coefficient is 0.84. The equilibrium constant of adsorption is 8.5×10 4 and Gibbs free energy is -37.4KJ/mol.
     结果表明:头孢氨苄在悬汞电极表面的吸附电位范围为+0.08~- 1.35V(VS.SCE),吸附类型服从Frum kin 吸附,吸附因数为0.84,吸附平衡常数为8.5×104,吸附自由能为- 37.4KJ/m ol.
短句来源
     The adsorption behaviour of 2,2'-bipyridine at a gold electrode was studied by potentiostatic square wave slow sweep methods. The differential capacity curves were measured for 2,2'-bipyidine solution of different concentrations at a gold electrode. Experimental results indicated that the adsorption of 2,2'-bipyridine at a gold electrode are in the potential range from +0.65V to ─1.20V(VS.SCE).
     本文使用恒电位方波慢扫描法,测量了不同浓度的2,2'─联吡啶在金电极表面的微分电容曲线,从而得到2,2'─联吡啶在金电极表面的吸附电位范围为+0.65~-1.20V(VS.SCE)、吸附类型服从Frumkin型吸附、吸附自由能为-35.86KJ·mol-1。
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  adsorption potential
It is shown that, for univalent cations in the regime of convective diffusion, the coefficient of electrolyte rejection by the membrane correlates with the adsorption potential of cations (counterions) at the pore surface of a selective layer.
      
The dependence of the rejection coefficient of the solutions of salts with single-charged ions on the adsorption potential of constituent cations is established.
      
The specific adsorption potential of SDS is found to be -(4.6 ± 0.1)?, where ? is the product of Boltzmann's constant and absolute temperature.
      
The specific adsorption potential is independent of the background electrolyte concentration, remains constant within the determination error of the parameters, and substantially contributes to the formation of EDL of micelles.
      
It is shown that all adsorption parameters, with the exception of the adsorption potential drop of the organic substance, can be calculated from capacitance curves in the absence of information on the electrode PZC.
      
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  absorption potential
Sizing quality of cationic starch fairly matched with the sizing quality of chitosan, however, it was able to reduce the water absorption potential of paper more than chitosan at a same concentration.
      
Rapid Screening of Drug Absorption Potential Using the Immobilized Artificial Membrane Phosphatidylcholine Column and Molar Volu
      
The immobilized artificial membrane phosphatidylcholine (IAMPC) chromatography was evaluated for the predictability of oral absorption potential of 40 structurally unrelated drugs.
      
This in vitro prediction method may be useful in a rapid screening of drug candidates with high oral absorption potential in humans.
      
The complex optical potential is constructed by adding a model absorption potential as its imaginary part to the real optical potential.
      
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The electrochemical behaviour of 2-thiazolidinethione (H1), sodium phcnylditluopropylene mlfonate (S1), and chloride-ion on copper electrode was studied by voltammetry and a.c. impedance methods. The results show that all the above mentioned additives are adsorbed on copper electrode at a rather wide range of potential; and that the adsorption of H1 is stronger than that of S1 and the adsorption process is diffusion-controlled; furthermore, S1 and chloride-ion may be coordinated with copper ions. In addition,...

The electrochemical behaviour of 2-thiazolidinethione (H1), sodium phcnylditluopropylene mlfonate (S1), and chloride-ion on copper electrode was studied by voltammetry and a.c. impedance methods. The results show that all the above mentioned additives are adsorbed on copper electrode at a rather wide range of potential; and that the adsorption of H1 is stronger than that of S1 and the adsorption process is diffusion-controlled; furthermore, S1 and chloride-ion may be coordinated with copper ions. In addition, the effect of these additives on the elcctrodeposition of copper is discussed.x

本工作用伏安法和交流阻抗法,研究了2-四氢噻唑硫酮(H_1),苯基聚二硫丙烷磺酸钠(S_1)和氯离子在铜电极上的电化学行为。结果表明,上述添加剂在铜电极上都表现吸附作用,吸附电位区相当宽,H_1的吸附性比S_1强,吸附是扩散控制的,且显著地阻他铜离子放电过程,S_1和氯离子可与铜离子络合。此外,还讨论添加剂对铜电沉积过程的影响。

Potentiometric stripping analysis can be applied to Sn(Ⅳ) and sn(Ⅱ) in 0.35M NaNO_3 at pH 1.4. The sensitivity of this method is 1×10~(-9)M when dissolved oxygen is used as oxident (7.9×10~(-5)M) at a pre-electrolysis time of 4 minutes.Cyclic voltammetric method reveals that sn(Ⅱ)→Sn(0) is the most prominent reduction step whereas Sn(0)→Sn(Ⅱ) is the most prominent one in the course of oxidation.The interference of various ions has been investigated. They can be classified into two categories: Those which are...

Potentiometric stripping analysis can be applied to Sn(Ⅳ) and sn(Ⅱ) in 0.35M NaNO_3 at pH 1.4. The sensitivity of this method is 1×10~(-9)M when dissolved oxygen is used as oxident (7.9×10~(-5)M) at a pre-electrolysis time of 4 minutes.Cyclic voltammetric method reveals that sn(Ⅱ)→Sn(0) is the most prominent reduction step whereas Sn(0)→Sn(Ⅱ) is the most prominent one in the course of oxidation.The interference of various ions has been investigated. They can be classified into two categories: Those which are oxidized at about the same potential as Sn (0.45 volt, vs. Ag/AgCl), they increase the transition time τ and those which exhibit oxidizing effects towards Sn, they decrease the transition time.The presence of complexing agents such as pyrogallol and thio glycolic acid which form with Sn(Ⅳ) or Sn(Ⅱ) complexes adsorbed at the electrode increases the sensitivity by three to four order of magnitude, with pyrogallol the sensitivity is 1×10~(-12)M, with thio glycolic acid 10~(-13)M. Cyclic voltammetric method reveals the presence of adsorption. This method is called the adsorption potentiometric stripping method.The tin contents of some industrial water samples have been determined and the results are compard with anodic stripping and spectrophotometric methods.

应用电位溶出分析法,在0.35M NaNO_3 pH=1.4中能测定Sn(Ⅳ)和Sn(Ⅱ)。当使用溶解的氧为氧化剂(7.9×10~(-5)M),预富集时间为4分钟时,此法的测定灵敏度为1×10~(-9)M。循环伏安法显示,Sn(Ⅱ)→Sn(0)是最主要的还原步骤;而在氧化过程中,Sn(0)→Sn(Ⅱ)是最主要的氧化步骤。进行了各种干扰离子的实验。可以将干扰离子分为两类:(1) 与Sn的氧化电位(—0.45Vvs.Ag/AgCl相同者,能使Sn的过渡时间(或称消失时间)增长。(2) 对Sn呈现氧化作用者,使Sn的过渡时间缩短。当有与Sn(Ⅳ)或Sn(Ⅱ)形成络合物的试剂存在时,例如磷苯三酚和α巯基乙酸,由于形成的络合物吸附在电极表面,能使灵敏度提高三至四个数量级。磷苯三酚及α巯基乙酸存在时的灵敏度分别为1×10~(12)M和1×10~(-13)M。循环伏安法显示存在着这种吸附。利用吸附效应进行电位溶出分析的方法称为吸附电位溶出分析法。测定了若干水样中的微量锡的含量。所得的结果与阳极溶出法和分光光度法相对照。

By potentiostatic square wave methods, the differential capacity curves of different concentrations of DE。 DPE—Ⅲ and their mixture in NaoH solutions on dropping mercury electrode were serveyed and drew. From these curves, we have defined the adsorption behaviours of all the above mentioned additives toward the ranges of adsorption potentiai(-0.2—-1.8V) , the strong or weak of adsorption activity(DE is twice as surface activity as DPE—Ⅲ)and the mechanisms of adsorption (Adsorption of Langmuir type) .

本文采用恒电位方波法,测绘了在NaOH溶液中,不同浓度的DE、DPE—Ⅲ及其混合物在滴汞电极上的微分电容曲线。由这些微分电容曲线,我们确定了上述有机添加剂在滴汞电极上的吸附电位范围(-0.2—-1.8V)、吸附强弱(DE的表面活性比DPE—Ⅲ大一倍)和吸附机理(Langmuir型吸附)。

 
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