کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9743800 | 1491199 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Determination of free chlorine based on anodic voltammetry using platinum, gold, and glassy carbon electrodes
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The oxidation of free chlorine on platinum, gold, and glassy carbon disk electrodes has been investigated by using anodic voltammetry to determine the free-chlorine concentration. The voltammetric curves exhibited well-defined anodic peaks. The influences of pH, free-chlorine concentration, and potential sweep rate on the electrode response were investigated. The results show that the measurement of the oxidation peak current can be used as the basis for a simple, accurate, and rapid method for the determination of ClOâ, within a concentration range of 4-400 mg Cl lâ1. The results of this method were in good agreement with those obtained by iodometric titration. Differential pulse voltammetry has also been examined, resulting in an improved sensitivity at a concentration of 1.0 mg Cl lâ1.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Analytica Chimica Acta - Volume 537, Issues 1â2, 29 April 2005, Pages 293-298
Journal: Analytica Chimica Acta - Volume 537, Issues 1â2, 29 April 2005, Pages 293-298
نویسندگان
Fumihiro Kodera, Minoru Umeda, Akifumi Yamada,