8-position Automatic Concentrator

Automatic Parallel Concentrator has 8 sample positions and enables the user to evaporate to dry or concentrate into a fixed end-point volume.
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The 8-position Automated Parallel Concentrator is a microprocessor-controlled concentrator that provides unattended, rapid sample evaporation. It increases the capacity and sample throughput in laboratories, eliminates concentration bottlenecks and maintains quality and lower costs. This instrument has 8 sample positions and enables the user to evaporate to solid state or concentrate into a fixed end-point volume.

The 8-position concentrator efficiently concentrates samples prior to analysis by LC/MS or other analytical instruments. Laser sensors automatically stop gas flow when evaporation has reached its end-point, thereby eliminating the risk of drying and loss of volatile compounds. The system is suitable for evaporation of large volumes after liquid-liquid extractions.


Technical Features


v  Vortex nitrogen purge provides rapid concentration. The location and direction of nitrogen purge can be adjusted according to the concentration cup volume and sample quantity.

v  Built-in nitrogen gas regulation device controls the nitrogen flow and evaporation speed.

v  Operation process can be visibly observed through front window with backlit, and no need to check the residual volume by taking out sample cups.

v  Sealed concentration chamber has a high efficient vapor exhausting function.

v  Automatically detect the endpoint – no monitoring required.

v  Up to 8 positions supports 200ml & 50ml concentration cups simultaneously.

v  8 laser infrared laser sensors control individual sample volume.

v  The concentration cups can be placed on the liquid handler of GPC/SPE directly.

v  Heating controlled water bath can reach the temperature from ambient to 99.9.

v  High liquid level alarm and high pressure alarm ensure convenient and safe operation.

v  Touch screen control interface.


Touth Screen Control Interface



Evaporation Speed


Solvents Original Volume (ml) Time to1ml(min)
Dichloromethane 180 25
Ethyl acetate 180 20
Cyclohexane 180 18
Methanol 180 65
Acetonitrile 180 40
Cetone 180 21
Normal hexane 180 15
Petroleum ether 180 13
Water bath temperature 60°C


The Effects of Nitrogen Blowing Direction on the Concentration Rate


                                                               X- Angle of nitrogen blowing    Y-Concentration time