Elementar - Model vario EL cube -CHNOS Elemental Analyzer
Using more than one hundred years experience in elemental analysis in close contact with today`s users of our instruments the vario EL cube was developed for a growing and changing demand in the 21st century. Designed as the successor of the most successful elemental analyzer, vario EL III, the vario EL cube is again the most versatile instrument in CHNS+O+Cl analysis. Based on the `cube` platform it represents a thousand-fold proven method using latest manufacturing technology and intelligent engineering in the user interest. The established purge&trap chromatography guarantees baseline separation under all circumstances for all kinds of samples. From pharmaceutical to soil analysis, from sediment research to the analysis of food stuff – the vario EL cube just does it. 24 hours per day, 365 days per year.
- Exceptional elemental concentration & sample size range which covers 1 µg elemental concentrations, 40 mg C, and 1.5 g inorganic samples
- Reliable, matrix-independent results even for samples that are traditionally difficult to combust
- Outstanding hydrogen and sulfur measurement capabilities including simultaneous CHNS analysis even for sub-µg sulfur concentrations
- High operating comfort thanks to a high level of automation and low-maintenance design
The vario EL cube is optimized for the analysis of:
CHNS
CHN
CNS
CN
O*
Cl*
TIC*
* optionally available
Weighing range
Large weighing range spanning from micro (<1 mg) to macro (1.5 g soil) sample weight and up to 20 mg of organic matter.
Element concentration range
Largest dynamic range of element concentrations:
C: Up to 40 mg absolute or 0 - 100 %
H: Up to 3 mg absolute or 0 - 100 %
N: Up to 15 mg absolute or 0 - 100 %
S: Up to 6 mg absolute or 0 - 100 %
O*: Up to 6 mg absolute or 0 - 100 %
Cl*: Up to 1.2 mg absolute or 0 - 100 %
Precision
< 0.1 % absolute (homogeneous substance), depending on sample type, analysis mode, and configuration
Analysis time
~ 3-4 min per element, self-optimizing according to element content and sample weight. Depending on sample type, analysis mode, and configuration.
* optionally available
High-temperature combustion unit:
Complete sample digestion at up to 1,200 °C (or 1,800 °C at the point of combustion when tin foil is used) with a ten-year furnace warranty. A jet injection of oxygen directly to the sample leads to the highest oxygen concentrations at the point of combustion, as well as low gas consumption. 100 % recovery is guaranteed even for samples, that are traditionally hard to combust.
Purge and trap chromatography:
Separation of gaseous components on up to three gas-selective columns. These columns trap the gases until they are heated up. The release of a gas is only initiated, when the prior gas peak has reached baseline. This results in perfect peak separation without overlap, and automatic optimization of the analysis time.
Detector
- Thermal Conductivity Detector (TCD)
- Infrared (IR) Detector* for sulfur and oxygen
- Electrochemical Detector* for chlorine
Sample introduction
- Integrated 60*, 80, or 120* positions autosampler (for solids and liquids in capsules), reloadable during analysis
- Integrated 2 ml vial, 50 positions liquid autosampler with rinse and waste vial*, reloadable during analysis
Maximum furnace temperature
1,200 ° C (whereby 1,800 °C is briefly reached at the combustion point when using tin foil)
Instrument control
Windows® based vario EL cube operating software with LIMS integration and auto sleep and wake-up function for automated and unattended overnight operation. 21 CFR Part 11 functionality available.*
Required gases
Helium or argon and oxygen
Dimensions
48 x 55 x 57 cm (W x D x H)
* optionally available