TOC ANALYZER

uniTOC instruments - the principle of operation Both instruments use the UV/persulfate oxidation procedure followed by NDIR measurement. Dependent on the sample consistency the oxidation process can even be performed reagent-free. The typical application fields of the uniTOC systems allow the dosage of larger volumes of sample, which guarantees high reproducibility of results as well as a high sensitivity. During standard operation, the on-line measurements have short measuring times. The continous self-cleaning procedure of the reactor avoids any cross-contaminations. Since the quality of the sparging gas can be low, the use of pressurized air is standard. The non-dispersive infrared detektor system is absolutely selective to carbon dioxide and therefore independent of the sample matrix. The setup of the instruments allow the determination of totel inorganic carbon (TIC) and the total organic carbon (TOC) content from the same sample. This measurements are independent of the sample temperature. uniTOC- Analysis Method uniTOC- systems TC – Total Carbon The total carbon concentration of the sample is the sum of the inorganic carbon and organic carbon content. In the uniTOC instrumetns, inorganic and organic carbon are measured separately. TIC – Total Inorganic Carbon CO2 and the ionic carbonate is sparged with the carrier gas as carbon dioxide into the NDIR detection cell and measured.