ANALYSIS OF METHODS FOR DETERMINATION OF CHLORINE DIOXIDE, CHLORITE AND CHLORATE ANIONS IN DRINKING WATER

The analysis shows that the primary measure for purification of drinking water is its reliable disinfection with oxidants, which are chlorine and compounds, dioxide, ozone. aim article to analyze existing methods determination chlorite, hypochlorite chlorate anions in water. To dioxide strength solutions (to control generator performance) iodometric method (determination concentration, concentration free chlorine, chlorite anions; relative error ≤ 5%) direct absorption at 445 nm range concentrations 100-700 mg / l; 2%) were used. residual their joint presence titrimetric photometric N,N-діетил-1,4-фенилендіамінсульфатом (DFD) (error 0.05 mg/l) used as well iodine 350 0.01-0.5 mg/l. (selective methods), such used: chlorophenol red 0.02-0.7 mg/l; 5%; chromic violet acid 0.1-1.5 ion chromatography was anions. Given necessity harmonization domestic regulatory guidance documentation European one, it should be considered necessary chlorites chlorates by chromatography. It appropriate conduct research on approbation simultaneous samples after various oxidants (sodium hypochlorite, ozone, dioxide).