F. Quentel et al., ELECTROCHEMICAL DETERMINATION OF LOW-LEVELS OF RESIDUAL CHLORINE DIOXIDE IN TAP WATER, Analytica chimica acta, 295(1-2), 1994, pp. 85-91
The reaction between 1,2-dihydroxyanthraquinone-3-sulphonic acid and c
hlorine dioxide, in phosphate buffer medium, was studied spectrophotom
etrically and electrochemically. An electroanalyticall method is propo
sed for the determination of traces of CIO2 with a detection limit of
2 mu g l(-)1. The stoichiometry of the reaction, the effects of variou
s operational parameters and the influence of foreign ions are reporte
d.