Vario TOC Cube

TOC/TNb analysis without limitations

The enviro TOC is a revolutionary, newly designed total organic carbon analyzer for the determination of organically and inorganically bound carbon in liquids, slurries, and solids.

For the first time, ppb-sensitivity for measuring TOC or TNb in aqueous solutions is combined with the accuracy and reliability of organic elemental analysis to automatically measure up to 100% carbon concentrations in any sample matrix.

Measuring modes for TC/TIC, TOC/NPOC, POC and DOC are available. The formed CO2 is purified through a halogen trap with a subsequent tree-step intensive gas drying system. CO2 is detected by a super wide range NDIR-photometer offering extraordinary linearity, free of spectral interferences even against SO2, and an outstanding concentration without the need for sample dilution.

A newly developed matrix separation system (patent pending) ensures long-lasting, uninterrupted operation times for mineral-containing samples such as seawater. Determination of bound total nitrogen (TNb) as NO is possible using an optional electrochemical sensor (EC), infrared detector (NDIR), or chemiluminescence detector (CLD), with sensitivity down to the ppb level.

Specifications of the total organic carbon analyzer:

Measuring method
High-temperature catalytic oxidation up to 1200 °C and CO2-measurement with NDIR for TOC, NPOC, TC, TIC, POC (VOC), and DOC. Simultaneous TNb determination with EC, NDIR, or CLD (optional).

Large detection range
From low ppb to percent. Variable sample volume enables multipoint calibration from a single standard solution with auto-dilution-effect. Extraordinary linearity over the entire calibration range.

Modular concept for liquids and solids analysis
Large choice of automatic sample feeders for liquids and solids, alternatively cost-efficient solutions with manual sample change. Quick and easy exchangeable, with the possibility to upgrade at any time.

Real matrix separation
The new reactor concept enables real matrix separation and offers maximum protection of the combustion tube. Excellent properties for analyses of saline solutions (e.g. brine) or other complicated sample matrices.

Software with high performance and maximum flexibility
Instrument control with a Windows standard PC, control and evaluation software with calibration wizard, system suitability test, statistics and advanced math operations. Optional 21 CFR part 11 compliance is available. Integrated maintenance software and comprehensive help menu are also available.

Supports validation
Complete qualification documentation with Standard Operation Procedures (SOPs) and Certificates for IQ, OQ and PQ according to FDA regulations

*depending on sample matrix