For decades users in environmental and water analysis rely on TOC analysers by Elementar. The whole spectrum ranging from ultrapure water, waste water to sludges and solids is covered by a single flexible TOC analyser. In addition to the determination of TOC, the content of total bound nitrogen (TNb) can also be determined simultaneously in aqueous samples. Even difficult samples like sea water and concentrated chemicals and acids are no longer a challenge. The measuring range extends from a lower detection limit of 3 µg/l (vario TOC cube) up to 100,000 mg/l (vario TOC select).
By a real catalytic high temperature digestion of 850 °C, the complete oxidation of TOC is ensured. To guarantee such a temperature over a long interval, the catalyst is protected from detrimental factors such as salts through a special, patented process at Elementar. Already during the design of the TOC analyser emphasis is put on easy accessibility of all parts that require a regular maintanance. The exchange of combustion and adsorption tubes is a matter of a few minutes only.
There is no need to mention that the analysis of water is performed fully automatically. But also solids can be analysed for TOC through automatic sample feeding. Just weigh the sample in tin capsules, seal the capsule and put it on the sample tray - that’s it. Even the change from liquid to solid mode can be performed in max. 5 minutes. Analysis times of 3 to 4 minutes turn Elementar’s TOC analysers into work horses for routine operation in environmental and water analysis.