The modern “cube” platform is setting the standards for elemental analyzers. Outstanding instrument design and intelligent engineering in combination with 110 years experience in the development of elemental micro-analyzers lead to unmatched precision of your analysis. Less than 1 mg pharmaceuticals can be analyzed just as precise as 500 mg soil samples. Volatile gasoline or temperature-proof silicon carbide can be analyzed just like coal, foodstuff or sewage sludge – without restriction of the elements, simultaneously for CHNS or for the combinations CNS, CHN, CN, O and Cl.
Universality and analytic performance of the vario MICRO cube are unmatched in this instrument class.
CHNS, CHN, CNS, CN: all available from the basic unit. Optional detection of oxygen (with TCD or IR) and chlorine
High temperature combustion
quantitative sample digestion at up to 1200 °C – with ten years furnace warranty (1800 °C at the point of combustion when tin foil is used). This is the prerequisite for 100% recovery also with samples difficult to combust. Jet injection of oxygen directly to the sample leads to highest oxygen concentrations at the point of combustion and low gas consumption
Largest weighing range
from micro (<1 mg) to macro (800 mg soil) sample weight, depending on requirements up to 20 mg organic matter
Largest dynamic range of element concentrations and element ratio
up to 7 mg C abs. or 10 mg N abs. (or 100%, depending on analysis mode and sample matrix), from ppm to 100%
Temperature programmed Desorption (TPD)
Separation of gaseous components with one TPD column for perfect separation without peak overlap. Automated optimization of the time per analysis
stable over months and matrix independent
with a standard PC for perfect results also for unknown or heavily variable sample matrices with integrated sample feeder for 120 samples, 21 CFR part 11 functionality available. Possibility for remote service due to full digitalization of the instrument electronics
Dissolved carbon and nitrogen isotope analysis on the highest level
Based on the “cube” platform that has set the gold standard for elemental analysis, theiso TOC cube is a new concept for the quantitative and isotopic determination of dissolved carbon and nitrogen in liquids and slurries.
The simultaneous determination of dissolved δ13C and δ15N at concentrations as low as 0.2 ppm and 10 ppm, respectively, are easily achieved with the vario iso TOC cube. For the first time the high 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 matrices ranging from dilute glacial meltwaters to aggressive soil extracts. Oxidation of bound carbon and nitrogen by means of high temperature digestion and catalytic post combustion in a free selectable range of up to 1,200 °C, with reduction of nitrogen oxides to N2 for determination by IRMS.
With measuring modes for the isotopic analysis of TC/TIC, DOC, TC/TIC/TNb or DOC/TNb. Formed CO2 and N2 are purified through a halogen trap with subsequent 3-step intensive gas drying system, and a newly developed matrix separation system (patent pending) that allows multiple injections of difficult matrices (such as seawater). CO2 is detected by a super wide range NDIR-photometer with extraordinary linearity prior to peak focusing of both CO2 and N2 on individual temperature programmed desorption columns (patent pending) to achieve the high-level performance required for IRMS measurement.
Carbon isotopes of TC/TIC, DOC
Nitrogen isotopes of TNb
Carbon and nitrogen isotopes of TC/TIC/TNb, DOC/TNb