FAST
fully automated CN determination:
more than 300 samples per day
EFFICIENT
lowest cost per analysis
due to Gas Saving System
SIMPLE
sample weights up to 5 g
save time consuming homogenization
RELIABLE
analyzing whole gases
yields highest precision
UNSTOPPABLE
helium or argon
as carrier gas
NONSTOP
low in maintenance
based on crucible technique
UNFAILING
10 years warranty
on furnace and detector
The Dumas combustion method has become the worldwide used standard for accurate and fast determination of nitrogen, e.g. in agricultural products. Compared to the wet chemical Kjeldahl method it is superior in terms of speed, safety and environmental friendliness. The representative analysis of a natural product requires a larger sample size of up to 1 gram or more.
ELEMENTAR in Germany has been the pioneer in the development of analyzers not only for organic elemental analysis, but also in the analysis of macro sized samples.
ELEMENTAR introduced the macro N analyzer in 1988. It was the world's first combustion type nitrogen analyzer for samples up to 3 g using reusable steel crucibles.
The longest tradition in macro analyzer design combined with state of the art electronics, software and robotics has made the vario MAX cube the leading analyzer in terms of analytical performance, reliability, cost and speed of analysis.
Largest sample size
up to 5 g sample weight for CN analysis. Up to 500 mg C & N absolute can be measured (depending on mode).
90 position autosampler
for 5 ml steel crucibles for solids and liquids with virtually unlimited life. Automatic ash removal and rechargeable at any time also during operation.
Highest speed of analysis
less than 4 min for N (sample to sample). High sample throughput is realized without interruption by blank and recalibration measurements.
Best precision
e.g. 5 ppm N in beer or 10 ppm C in soil.
Extreme long time stability
for unattended, fully automated overnight operation. Only one blank value check is required per day.
Efficient water removal
a multistep condenser and Nafion(R) gas dryer results in along time maintenance free operation, even for continuous series of 2 ml aqueous samples.
vario MAX cube CN
Macro analyzer for simultaneous CN determination.
This analyzer is particularly suitable for meats, grains, feeds, dairy products and beer for the determination of protein (N). In CN mode typical applications include plants tissue, soils, manure and compost samples as well as liquid extracts of these materials.
Cost-effective and easy to handle due the reusable crucibles and automatic ash removal.
vario MAX cube CNS
vario MAX cube CNS for simultaneous CNS determination.
In CNS mode typical applications include plants tissue, soils, compost and fertilizer samples as well as liquid extracts of these materials.
Cost-effective and easy to handle due the reusable crucibles and automatic ash removal.
Measuring method
High temperature combustion at up to 1200 °C with subsequent gas analysis. For N/Protein according to Dumas or CN according to AOAC, DIN/ISO, EN and other international standards.
Easy sample handling
due to weigh-in in re-usable crucibles (steel or ceramics) without any special pre-treatment. Suitable for solids or liquids up to several grams or milliliters.
Safe, fast, clean
The analysis takes only a few minutes. No aggressive or toxic chemicals are required. Physical separation of water and CO2.
Large concentration range
:
from ppm to 100% or 500 mg absolute for C & N (depending on mode)
Few operational requirements
1 m laboratory working space, 1 electrical connection and 2 operating gases are sufficient for maintenance long term operation
Fully automatic
With integrated 90 position sample changer, PC-control through Windows®, Optional 21 CFR Part 11 compliant software is available.
Our kits of consumables contain all necessary parts and chemicals for the corresponding mode. Under more it contains combustion/reduction tubes, all chemicals and instrument specific wear parts. We do not compromise on quality of the used parts and chemicals – this is the prerequisite of a guaranteed long lifetime of our instruments.
Kits of consumables for approx. 4000 analysis
