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极谱理论
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  “极谱理论”译为未确定词的双语例句
     Investigation on Triangular-wave AC Oscillopolarography(Ⅱ)——Theory of Single Electrode Reaction
     三角波交流示波极谱的研究(Ⅱ)——单组分三角波交流示波极谱理论
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     Investigation on Triangular-wave AC Oscillopolarography(Ⅲ)——Theory of Two Components
     三角波交流示波极谱的研究(Ⅲ)——双组分三角波交流示波极谱理论
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     INVESTIGATION ON TRIANGULAR-WAVE OSCILLOPOLAROGRAPHY Ⅳ. Theory for Multicomponents
     三角波交流示波极谱的研究 Ⅳ.多组分三角波交流示波极谱理论
短句来源
     INVESTIGATION ON TRIANGULAR-WAVE OSCILLOPOLAROGRAPHY IV. Theory for Multicomponents
     三角波交流示波极谱的研究 Ⅳ.多组分三角波交流示波极谱理论
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     The experimented results agree with the theories of the of pseudo-polarography reversible electrode reaction.
     实验结果证明:Cd(Ⅱ),Pb(Ⅱ)在氟化物体系中的伪极谱行为符合可逆电极反应伪极谱理论.
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     Investigations on A. C. Polarography——Ⅰ. Theory of Catalytic Currents
     交流极谱研究 Ⅰ.催化电流理论
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     Fractal Theory
     分形理论
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     n-FOLD NUMBER THEORY
     n重数理论
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     INVESTIGATIONS ON A.C.POLAROGRAPHY——Ⅲ Experimental Verification of The Theory of Catalytic Currents
     交流极谱研究 Ⅲ.催化电流理论的验证
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     Polarography of Chromeazurol S
     铬天青S的极谱
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  polarography theory
Rate constants for the reaction of superoxide O-2 with various substrates were obtained through stationary electrode polarography theory and technique.
      


An experimental verification of the theoretical peak current equation forreversible electrode reactions of the Randles-Sevcik oscillopolarography, i_p=Kn~(3/2)D~(1/2)m~(2/3)θ~(2/3)α~(1/2)cμΑ, is carried out with both single- and multisweep methods. Themultisweep method is essentially that of Delahay, while a simplified circuit isdevised for the single-sweep procedure. The constant K in the above equation has been worked out by Randlesand Sevcikc, but their values differ by some twenty-one percent. Experimentalresults...

An experimental verification of the theoretical peak current equation forreversible electrode reactions of the Randles-Sevcik oscillopolarography, i_p=Kn~(3/2)D~(1/2)m~(2/3)θ~(2/3)α~(1/2)cμΑ, is carried out with both single- and multisweep methods. Themultisweep method is essentially that of Delahay, while a simplified circuit isdevised for the single-sweep procedure. The constant K in the above equation has been worked out by Randlesand Sevcikc, but their values differ by some twenty-one percent. Experimentalresults as to which K value is correct have been contradictory. The authorspoint out that Sevcik's value of K is too low, due to the error in choosing too largea unit in his numerical integration. By taking smaller units and reperformingthe integration, the K value increases and approaches that of Randles. Thus thecorrectness of Randles' K value is ascertained and this value is used in calculatingthe theoretical slope. Their single-sweep results, with concentrations from 2×10~(-4) to 1×10~(-3) m/l andα~(1/2) from 1 to 4 volts/sec, agreement between experimental and theoretical slopesis obtained in the case of Tl~+ in m NaCl. In the case of Cd~(++) in m NaCl, experi-mental results deviate from the theoretical value, and the deviation increases withincreasing c and α~(1/2). Contrary to an unproven idea of Delahay, i_p obtained bymultisweep method is higher than that by the single-sweep procedure. However,in calculation of the theoretical values, a value of 15.0×16~(-6) obtained by polarLographic method is used for D of Tl~(+) in m NaCl. The use of the value of Dat infinite dilution is thought to be unjustified. If a D value of 15.0×10~(-6) is used,Delahay's results of Tl~+ in KNO_3 would be higher than the theoretical equationinstead of agreeing with it. This fact seems to support the findings of this paper. Various methods of correcting for capacity currents are compared and discus-sed. The authors point out that at α~(1/2) less than 2 volts/sec, the method of drawingan hbrizontal line introduces no appreciable error while at, high α, various methodsyield different results. This fact lowers the accurraey of data obtained at high α. The iR drop in the electrolytic cell and on the series resistance causes themeasured α to be different from the a actually applied on the drop electrode. Anelementary approximate correction of this effect is mentioned. Results after thiscorrection show that the deviation of Cd~(++) from theoretical at high c and α maybe due partly to this effect.

(1)以单波法及多波法验证Randles-Sevcik示波极谱理论公式之i_p~c及i_p~α~(1/2)关系,多波法用Delahay线路,单波法则用简化线路。单波法之结果,对亚铊离子在m氯化钠中,在2×10~(-4)~1×10~(-5)m浓度,α~(1/2)为1及4伏特/秒,实测结果和理论符合。镉离子在m氯化钠中,实测结果与理论有偏差,偏差随浓度及α~(1/2)加大而加大。多波法之i_p实测值高于单波法。 (2)在计算理论曲线时,作者肯定Sevcik之系数过低而采用Randles数值。亚铊离子于m氯化钠中之扩散系数D,采用极谱法测得之数值15.0×10~(-6)而不用无限稀时之D值(20.0×10~(-6))。 (3)在α~(1/2)低于2伏特/秒时,可用画水平线法扣除电容电流。在高α时各种扣除电容电流方法所得结果不同,影响结果之可靠性。 (4)电解池线路上之iR降使加在滴汞电极上之α改变。这种改变使实测i_p值偏低。作者曾作初步近似修正,结果说明α及浓度大时,镉离子实测数据对理论的偏差的一部分可能是由于iR降的作用。

The theory of single electrode reaction in triangular -wave AC oscillopola-rography is presented. Theoretical equation for E -t curve and incision height on concentration, current sweeping rate and other factors is confirmed with the experimental results very well.Some important results expresed below.

本文提出了单组分三角波交流示波极谱理论,推导了E~t、dE/dt~E曲线的理论公式,对转移时间、切口电位、切口高度作了定量的描述。

Theory of triangular-wave oscillopolarograms in the solution containing two depolarizer has been derived from the stepwise application of initial conditions" The result can be returned to what obtained by one depolarizer, which makes an agreement with expeiment. Factors affecting the incision are discussed. Some more important equations for second incision are given below.Where Ei is the incision potential, Hi is incision height, and ti is theemersion time of incision,τ1 is the transition time of first component....

Theory of triangular-wave oscillopolarograms in the solution containing two depolarizer has been derived from the stepwise application of initial conditions" The result can be returned to what obtained by one depolarizer, which makes an agreement with expeiment. Factors affecting the incision are discussed. Some more important equations for second incision are given below.Where Ei is the incision potential, Hi is incision height, and ti is theemersion time of incision,τ1 is the transition time of first component.

本文逐步运用初始条件,建立了双组分三角波交流示波极谱理论。该理论可较好地还原到前文报道的单组分状态时的各类方程,与实验结果一致。讨论了影响去极剂切口性质的主要因素,如去极剂浓度,前还原组分浓度以及三角波电流直流分量和电流扫描速率。

 
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