The Total Organic Carbon TOC analyzers TOC−L CSH Shimadzu, ASI and Total Nitrogen adopts the 680°C combustion catalytic oxidation method, while providing an ultra wide range of 4 μg/L to 30,000 mg/L. These analyzers have a detection limit of 4 μg/L through coordination with NDIR. This is the highest level of detection sensitivity available with the combustion catalytic oxidation method. This method makes it possible to efficiently oxidize not only easily decomposed, low-molecular-weight organic compounds but also hard-to-decompose insoluble and macromolecular organic compounds.
Simultaneous TN determination using the TNM-L Based on the similar oxidation process, can be carried out simultaneously with the TOC measurement. For this application, the TNM-L option is installed on the main TOC-L system.