Unicube

Micro elemental analyser with simultaneous CHNS determination plus O and Cl option

The new UNICUBE is a state-of-the-art instrument for elemental analysis of carbon, hydrogen, nitrogen, and sulfur. It combines the low costs and sensitivity of a micro elemental analyzer with the flexibility and outstanding robustness of a macro analyzer, offering unparalleled flexibility.

With the UNICUBE, you can analyze everything from 0.1 mg of pharmaceuticals to 1 g of inhomogenous soil samples. Wheter it’s volatile gasoline, or temperature-proof silicon carbide, coal, food products, or sewage sludge, UNICUBE handles them all effortlessly. It allows simultaneous CHNS analysis, or combinations like CNS, CHN, CN, O, and Cl in a sample run.

Quiet operation
Thanks to its innovative self-regulating air circulation cooling system, the UNICUBE is the quietest elemental analyzer in its class. Its low noise level is no louder than falling rain, creating a calm working environment. The smart design ensures optimal ease of use.

Maintenance is kept to a minimum and uptime is maximized with UNICUBE’s well-organized, easily accessible system components and convenient slide-oud furnace. Its tool-free clamp connection system guarantees a secure, leak-proof seal, ensuring smoot operation and reliable results with every analysis.

High-performance micro elemental analysis for the sharpest peaks
UNICUBE uses Elementar’s advanced direct TPD (Temperature Programmed Desorption) technology to ensure reliable, high-performance gas separation. Combined with the most powerful detector available, it allows to accurately measure samples with high elemental ratios: up to 12.000: for both C:N and C:S.

Specifications of the elemental analyzer: 

Quantitative high-temperature decomposition

UNICUBE operates continuously at around 1,200 °C and reaches up to 1,800 °C during combustion. In a pure oxygen environment, sulfur in the sample completely converts into SO2, achieving 100% recovery, even with compounds like BaSO4. It converts carbon to CO2 and measures it using a true non-dispersive IR photometer.

Large dynamic concentration range

UNICUBE offers a measuring range of 0-100%, or up to 20 mg S absolute, using a single IR detector and sensitivity range. For caron, the measuring range is also 0-100%, or up to 40 mg absolute. It can even detect concentrations as low as 1 ppm or 0.2 µg of sulfur.

Large weighing range

UNICUBE’s range encompasses micro (less than 1 mg) and macro (1 g) applications, depending on the sample type

Direct Temperature Programmed Desorption (direct TPD)

UNICUBE’s direct TPD technology enables perfect separation of gaseous components using an optimized TPD column, preventing peak overlap. The system automatically optimizes analysis time for efficiency. With multipoint calibration, UNICUBE ensures reliable stability over months and maintains matrix-independent functionality.

Instrument parameters are PC-controlled via Windows or Linux

The entire instrument is digitally controlled and can operate remotely via the internet, with an optional 21 CFR Part 11 compliance for enhanced data security. This full digitalization allows for seamless remote operation and monitoring.

One high-performance instrument for all applications

UNICUBE operates without the need of expensive special catalysts, featuring easy ash removal from the combustion tube. Its extended component lifetime helps minimize maintenance costs, ensuring a low total cost of ownership.

Clean, safe, fast

The analysis takes just a few minutes and requires no aggressive or toxic chemicals. Helium is used as a carrier gas, with argon as a possible alternative.

Easy installation requirements

The system occupies minimal benchtop space (48 x 55 cm) and operates with a single power supply (230, 110, 100 V) and two gases, ensuring low-term, maintenance-free operation.