TOC/TNb analysis without limitations For over 30 years, Elementar has been the German pioneer in high temperature TOC analysis. Elementar’s high temperature combustion method to measure organic contaminations provides a multitude of advantages compared to low temperature UV-digestion or wet chemical methods: • • Analysis time of 3-4 min for TOC Safe and environmentally clean operation without concentrated acids, oxydising agents or other aggressive chemicals or hazardous waste 100% C recovery independent from sample type and matrix also with particle or salt containing solutions Simultaneous analysis of totally bound nitrogen (TNb) in addition to TOC Fully automatic operation with high sample throughput and low analysis costs The vario TOC cube is a totally new analyser for TOC/TNb analysis for all types of samples from ultrapure (pharmaceutical) water, drinking water, industrial waste water, suspensions or solids with even very difficult sample matrices. The basic concept combines for the first time the features of a high performance water analyser with a century of experience in organic elemental analysis of carbon in solids. The measuring principle for all operation modes is the oxidation of bound carbon into CO2. The liquid sample is directly injected into the combustion reactor at 850 °C in an air carrier gas stream. Solid samples are weighed in a tin container and fed automatically via a ball valve. The gas is dried, flow stabilised and finally measured with a NDIR detector. A connected PC calculates the total carbon concentration (TC) from the meas­ red CO2 signal and the u sample weight. Inorganic (carbonate) carbon (TIC) can be measured automatically by acidifying the sample in a sparger and stripping and detecting the released CO2. The equation TOC=TC-TIC gives you the content of total organic carbon. In addition the total bound nitrogen (TNb) can be measured simultaneously to TOC by means of NO sensitive electrochemical (EC) or chemiluminescence (CLD) detectors.

vario TOC cube No limitations in sample nature Oxidation temperatures of up to 1200  provide com°C plete C recovery for even extremely stable compounds. Due to a unique matrix separation concept concentrated salt solutions can also be analysed in larger injection volumes. The special tin capsule sampling technique allows for the accurate analysis of unlimited sized particles, suspensions and bulk solids as well as easy liquid handling. Sample volume can range from 3 μl to 2 ml. Unmatched analytical performance All parameters such as TOC, NPOC, TC, TIC, DOC, POC and TNb can be measured with the...