Role of Mercury Electrodes in Contemporary Analytical Chemistry

✍ Scribed by Petr Zuman

• Publisher: John Wiley and Sons
• Year: 2000
• Tongue: English
• Weight: 109 KB
• Volume: 12
• Category: Article
• ISSN: 1040-0397
• DOI: 10.1002/1521-4109(200010)12:15<1187::aid-elan1187>3.0.co;2-s

✦ Synopsis

Advantages and limitations of electroanalytical methods using mercury electrodes, in particular in polarography using dropping mercury electrode and variants of polarography, voltammetry with a hanging mercury drop electrode and stripping analyses are summarized. Some examples of recent applications of such techniques in investigation of basic and applied problems are given. Information can be obtained about conjugation in less frequently studied groupings, like CN±NC and about acid-base equilibria preceding the transfer of the ®rst electron. Among approaches to applied problems, the advantage of using polarography for investigation of heterogeneous systems is pointed out. It is demonstrated on investigation of interaction of heavy metal(II) ions with bile salts, of adsorption of pesticides, heavy metal ions, nitrosamines and other organic compounds on lignin, as well as on the possibility to follow the cleavage of lignin under mild conditions.