还原电位

In this paper, polarographic and voltammetric behaviours of reactive brilliant red K-2BP have been studied in detail.

研究了单偶氮染料活性艳红 K-2BP的极谱伏安行为，实验结果表明，在0.1mol/l的NaCl溶液中，该染料有一稳定、灵敏的还原峰，峰电位Ep=-0.81Vvs。

The comples formed with phen,dipy and variant valence metal such as Fe,Co,Ru and so on was statable and had higher electric potential at low valence.There was difference between the colours of low and high valence methal complex,so it played very important rule in oxidate-reduction titration and spectrophotometry.

邻二氮菲、联吡啶与铁、钴、钌等变价元素形成配合物，低价态呈稳定态，电对电位升高，且高低价态配合物颜色有明显差异，使之在光度分析，氧化还原滴定中获得重要应用。

On the condition of the existence of the buffer solution of ammonium acetate (PH5-6) and ammonium thiocyanate, quantitatively reduce Cu2+ into Cu+ by using sodium thiosulphate .

本文在PH5-6的乙酸铵缓冲溶液及硫氰酸铵存在下，用硫代硫酸钠定量还原Cu~(2+)为Cu~+，Cu~+与SCN~-结合，形成稳定的硫氰酸亚铜白色沉淀，反应终点可由全自动电位滴定仪确定。

The influence of mixed colonies composed of Micrococ cus and sulfate-reducing bacteria on corrosion behavior of 45# carbon ste el was studied using open cir cuit potential,polarization curve and AC-impedance.

皮振邦，樊友军，华萍等摘要：采用开路电位测量、极化曲线和电化学交流阻抗研究了由小球菌和硫酸盐还原菌构成的混合菌种对45#碳钢腐蚀行为的影响。

Experiments demonstrated that the new system showed noticeable superiority to the traditional one in cleaning and disinfection for endoscopes.

实验表明，所研制的新型内窥镜消毒系统将超声技术和高电位氧化还原水有效结合，在提高内窥镜使用效率的基础上，使得对内窥镜的消毒更为彻底，而且可以同时对2条-3条内窥镜进行消毒。

The gas diffusion electrode with 1: 1 of mass ratio of acitivated carbon to MWNTs in catalyst layer shows the best electrode performance.

低频部分圆弧的直径随电极极化电位的增加而减小，表明该阻抗对应于氧的电化学还原过程。

But all mutant proteins have been effected on the midpoint reduction potential of FAD.

但是突变蛋白质的FAD中点电位都增加，此代表电子不易传递，也就是FAD还原受突变影响。

The change in the spectral features of SER spectra detected at more negative potential revealed that an addition reaction occurred with the carbon-carbon triple bond of phenylacetylene.

电化学现场光谱研究表明，苯乙炔分子随电位负移，碳碳叁键被加氢还原。

Based on research results on anodic and cathodic process, mixed-potential models of gold dissolution in the presence of heavy metal ions have been constructed. A Viewpoint is proposed that only being associated with cathodic enhancement by using assistant such as hydrogen peroxide do heavy metal ions enhance gold dissolution in cyanide solutions to the greatest extend.

在详细研究了重金属离子存在条件下金的阳极溶解和氧的阴极还原行为的基础上，构造了重金属强化氰化溶金的混合电位模型，提出了只有在辅以阴极强化的条件下，重金属离子才能最大限度强化金的氰化溶解的观点。

The formal potentials in cyclic voltammograms of these 3+ valence complexes are followed: Co〓-TPPS (-0.08V )＞Fe〓TPPS (-0.14V)＞Mn〓-TPPS (-0.23V). The electrochemical reaction of Mn〓-TPPS is reversible, and both of Co〓-TPPS and Fe〓-TPPS are quasi-reversible. The standard heterogeneous rate constants of Co〓-TPPS and Fe〓-TPPS were determined to be 1. 4×10〓cm/s and 1.4×10〓cm/s respectively. The rates of electrode reaction are as followed: Mn〓-TPPS＞Co〓-TPPS＞Fe〓-TPPS, e.i. Mn〓-TPPS is the most easily oxidized by the dissolved oxygen, and Fe〓-TPPS is oxidized slower than Co〓-TPPS. Ni〓-TPPS can not be oxidized. It is considered that oxygen plays an important role in the valence change of central metal atom and the rate of electron transfer in some metalloporphyrins.

三价金属卟啉络合物在循环伏安图上可得到三价到二价的还原和氧化响应，电极电位从大到小排列为：Co〓-TPPS(-0.08V)＞Fe〓-TPPS(-0.14V)＞Mn〓-TPPS(-0.23V)，电极反应可逆性也不相同，Mn〓-TPPS是可逆过程，Co〓-TPPS、Fe〓-TPPS是准可逆过程，实验测得Co〓-TPPS的标准电极反应速率常数ks＝1.4×10〓cm/s，Fe〓-TPPS的ks＝1.4×10〓cm/s，电极反应的速率从大到小为：Mn〓-TPPS＞Co〓-TPPS＞Fe〓-TPPS，即Mn〓-TPPS最容易被溶解氧所氧化，Fe〓-TPPS被氧化的速度最慢，Ni〓-TMPyP不能被氧化，因此我们认为溶解氧对金属卟啉中心离子的价态和电子转移速率起着重要作用。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了