Analytical possibilities of a solid-electrolyte analyzer for the determination of the total organic content in water

A new analytical approach to the determination of the total organic content in water was proposed. It is based on determining the amount of oxygen con sumed for the high-temperature oxidation of organic substances contained in a water sample. A rapid method without precalibration was developed. Conce ntration ranges for aqueous solutions of organic compounds of various class es are determined; the correlation coefficient between the measured values of chemical oxygen demand and the calculated oxidizability by oxygen within these ranges is close to 1. It was shown that the proposed method can repl ace determination by the chemical oxygen demand for waters with oxidizabili ty within the range 10-500 mg/L O-2; the analysis time is decreased from 2 h to 5 min. The procedure and instrument were certified. The method can be used in analyzing potable, natural, and waste waters.