Electrochemical Investigations of L-Cysteine Interactions with Bismuth Ions
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2020-06-25 |
| Journal | ECS Transactions |
| Authors | Graham T. Cheek, Dominik V Pena |
| Institutions | United States Naval Academy |
| Citations | 1 |
Abstract
Section titled āAbstractāThe interaction of L-cysteine with various bismuth compounds, namely, bismuth(III) salicylate, bismuth(III) citrate, and bismuth(III) nitrate, was studied at pH 1.0 (0.100 M HNO 3 and 0.100 M HCl) and pH 7.4 MOPS buffer by cyclic voltammetry at glassy carbon and boron-doped diamond electrodes. Using details of the voltammetric behavior, it was determined that Bi 3+ and L-cysteine (Cys) form a soluble complex at both pH 1.0 and pH 7.4. In addition, the reduction of the bismuth-cysteine complex to bismuth metal results in subsequent bismuth stripping. UV-VIS spectroscopy revealed that Bi 3+ and L-Cysteine form a 1:2 Bi 3+ : Cys complex in pH 7.4 MOPS buffer.