Exceptional elemental concentration & sample size range
Even elemental concentrations in the µg range produce well-defined peak shapes thanks to our patented gas preconcentration technology as well as our highly sensitive detectors. The vario EL cube features three gas-specific adsorption columns. Each column traps and preconcentrates one gas (i.e., CO2, SO2, and H2O), while N2 travels directly to the detector. Gases are released from the columns only after the peak of the previous gas returns to baseline. This means that the vario EL cube dynamically adjusts to your specific sample and guarantees complete baseline separation of gases - even at extreme C:N and C:S elemental ratios of 12,000:1. In contrast to other micro elemental analyzers, the vario EL cube has unusually high upper elemental and sample size limits. It can analyze up to 20 mg of an organic substance such as liquid fuels and up to 1.5 g of inorganic samples such as soils - as long as the carbon content does not exceed 40 mg. Additionally, the vario EL cube can be upgraded for oxygen, chlorine, and total inorganic carbon (TIC) analysis.