Total organic carbon is a measure of the level of organic molecules or contaminating components in purified water and is an analytical method that examines whether the water used is pure enough for processes.
The basic principle in TOC analytical method is to transform the organic substances in water into carbon dioxide (CO2) gas by catalytically burning them at high temperatures and to determine the total amount of organic carbon in the water by measuring the amount of CO2 gas released.
In TOC analysis, organic carbons must first be oxidized for component determination.
Major oxidation methods; high temperature combustion, chemical oxidation and photocatalytic oxidation.
- In the high temperature combustion process, the sample is mixed with an oxidation cathlyzer in a room that can be heated up to 95-100 degrees Celsius in order to convert organic substances to CO2.
- In photocatalytic oxidation, in the presence of UV light, organic substances are converted into CO2 gas.
- In chemical oxidation, the sample is mixed with persulphate in a UV-irradiated room and the transition from organic to CO2 is provided.
TOC analyzers are widely preferred in public resource analysis (lake, sea, etc.), pharmaceutical industry, waste water analysis, production processes, renewable energy field and provide fast and accurate results to the user.