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|Title:||Mercury(II) acetate-Nafion modified electrode for anodic stripping voltammetry of lead and copper with flow-injection analysis|
|Keywords:||Anodic stripping voltammetry|
Mercury(II) acetate-Nafion modified electrode
|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|
|Appears in Collections:||Staff Publications|
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