The method describes how to determine organically bound carbon in drinking water.
Drinking water intended for use as an ingredient in the production of beer (brewing liquor) or other foods
The organically bound carbon in water is converted into carbon dioxide through combustion. Inorganic carbon is eliminated through acidification or is determined separately. The carbon dioxide formed by oxidation is determined either directly or after reduction, e.g., to methane. The final determination of CO2 is achieved using various methods, e.g., infrared spectrometry, CO2-sensitive sensors or – after reduction of the CO2 to yield methane – with a flame ionization detector.