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Determination of chlorite in drinking water by differential pulse voltammetry on graphite |
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| Authors: | Giovanni?Pezzatini mailto:giop@unifi.it" title=" giop@unifi.it" itemprop=" email" data-track=" click" data-track-action=" Email author" data-track-label=" " >Email author,Ilaria?Midili,Gabriele?Toti,Francesca?Loglio,Massimo?Innocenti |
| Affiliation: | (1) Dipartimento di Chimica Università di Firenze, Via della Lastruccia 3, 50019 Sesto Fiorentino (FI), Italy |
| Abstract: | The chlorite ion is an unavoidable by-product of the disinfection of drinking water by means of chlorine dioxide. The maximum concentration values of chlorite accepted in many countries  regulations range from 0.2 to 1.0 mg L–1. A simple, inexpensive and quickly set up voltammetric procedure for the on-site determination of chlorite in drinking water networks is described. This procedure is suitable for the whole range of applications in drinking water plants. A useful cell for on-field analysis has been developed. Surface morphology and behaviour of carbon-based working electrodes have been investigated by voltammetry and atomic force microscopy (AFM). Actual samples of different types of water networks have been analysed for chlorite concentration. |
| Keywords: | Chlorite determination Drinking water Graphite electrodes Differential pulse voltammetry Atomic force microscopy |
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