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https://scholarbank.nus.edu.sg/handle/10635/94199
Title: | Mercury(II) acetate-Nafion modified electrode for anodic stripping voltammetry of lead and copper with flow-injection analysis | Authors: | Dalangin, R.R. Gunasingham, H. |
Keywords: | Anodic stripping voltammetry Copper Flow injection Lead Mercury(II) acetate-Nafion modified electrode |
Issue Date: | 10-Jun-1994 | Citation: | Dalangin, R.R.,Gunasingham, H. (1994-06-10). Mercury(II) acetate-Nafion modified electrode for anodic stripping voltammetry of lead and copper with flow-injection analysis. Analytica Chimica Acta 291 (1-2) : 81-87. ScholarBank@NUS Repository. | Abstract: | A new method for the preparation of mercury film electrodes used in anodic stripping voltammetry is introduced. This method is simple, rapid and eliminates the need for a mercury plating step. In this alternative method, Hg2+ (as in mercury(II) acetate) is incorporated into a Nafion perfluorosulfonate formed on top of a glassy carbon electrode. When a negative potential is applied to the electrode, the Hg2+ is reduced to Hg0 forming a three dimensional mercury film within a Nafion coating. The modified electrode is very stable in flowing solutions and has several advantages over a conventional preplated mercury film. The modified electrode was used to determine Pb2+ (0.07-2.8 μg ml-1) and Cu2+ (0.5-2.3 μg ml-1) in industrial effluents. © 1994. | Source Title: | Analytica Chimica Acta | URI: | http://scholarbank.nus.edu.sg/handle/10635/94199 | ISSN: | 00032670 |
Appears in Collections: | Staff Publications |
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