The effect of homocysteine and homocystine protonation on double-layer parameters at the electrode/chlorates(VII) interface

作者：Nosal Wiercinska Agnieszka^*; Wisniewska Malgorzata; Grochowski Mariusz; Kaliszczak Waldemar; Skrzypek Slawomira; Brycht Mariola; Guziejewski Dariusz; Franus Wojciech

来源：Adsorption Science and Technology, 2017, 35(5-6): 396-402.

DOI：10.1177/0263617416689271

• Adsorption
• adsorption parameters
• amino acids
• differential capacity
• double layer

In this study, a comparison of the properties of homocysteine and homocystine adsorption at mercury/chlorate(VII) interface was done. The adsorption of homocysteine and homocystine is in fact the adsorption of mercury(II) cysteine thiolate and mercury(I) cysteine thiolate. The differences in the capacity curves result probably from the formation of mercurous thiolate at the mercury surface. It seems that the changes in E-z and gamma(z) values accompanying the change in the amino acid protonation in the basic electrolyte solution, confirm the altered arrangement of the cysteine mercury thiolates on the electrode surface.

• 出版日期2017-7