Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Chlorite Ion Interference in the Spectrophotometric Measurement of Chlorine Dioxide
The presence of the Cl2O4− complex, which forms in chlorine dioxide (ClO2) solutions in the presence of chlorite ion, can result in significant error in the spectrophotometric measurement of ClO2. In this article, the significance of the Cl2O4− complex is demonstrated and the formation constant (Keq) and the molar absorptivity of this complex are reported. Based on the Keq and the molar absorptivity values, two methods are proposed to correct for the presence of the complex. By using the equation suggested in this article, the error of the determined ClO2 concentrations is reduced to the level of errors associated with the spectrophotometric measurements.
Chlorite Ion Interference in the Spectrophotometric Measurement of Chlorine Dioxide
The presence of the Cl2O4− complex, which forms in chlorine dioxide (ClO2) solutions in the presence of chlorite ion, can result in significant error in the spectrophotometric measurement of ClO2. In this article, the significance of the Cl2O4− complex is demonstrated and the formation constant (Keq) and the molar absorptivity of this complex are reported. Based on the Keq and the molar absorptivity values, two methods are proposed to correct for the presence of the complex. By using the equation suggested in this article, the error of the determined ClO2 concentrations is reduced to the level of errors associated with the spectrophotometric measurements.
Chlorite Ion Interference in the Spectrophotometric Measurement of Chlorine Dioxide
KÖrtvÉlyesi, Zsolt (Autor:in) / Gordon, Gilbert (Autor:in)
Journal ‐ American Water Works Association ; 96 ; 81-87
01.09.2004
7 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
DETERMINING CHLORINE DIOXIDE AND CHLORITE
Wiley | 1970
|Spectrophotometric determination of chlorine dioxide
Wiley | 1981
|