ET Concentrator

A good evaporation assistant after Sepaths SPE process.
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E.T.®system is 6 channel Parallel Nitrogen Evaporator. It is one of the sample preparation instruments, applying for general-purpose or regular laboratories. Collection vials of Sepaths AutoSPE can be placed into E.T. concentrator directly. It has unique visible evaporation design, operator can freely observe sample status during the evaporation process.


Technical Features


v    Compared with the traditional rotary evaporator, E.T. ® system with 6-channel can process 6 parallel samples simultaneously, thereby increasing laboratory throughput sample processing capability.

v The nitrogen flow rate of each channel can be adjusted independently. The nitrogen purge needle in each channel can be adjusted up and down independently.

v  The system uses a well-developed 208 intelligent temperature controller to set and calibrate temperature, using thermocouples to heat aluminum block, and the designed aluminum block structure makes each channel the temperature uniformity very well. The temperature difference RSD is less than 5%.

v  The sample volume is up to 40ml. The concentration tube is 40 ml of glass vial with scale and can be used for different instruments. Without transferring, samples are directly concentrated, thereby reducing transfer loss and improving recovery.

v    The system is compacted (length 300mm, 170mm, thick 120mm) with only 5 kg weight, and can be placed at random in a fume hood. 

Channel number 6 parallel concentration channels
Heating mode Applying aluminum block dry heating
Nitrogen purge Purge needle can be adjusted individually up and down, and the nitrogen flowrate can be adjusted individually
Concentraiton tube 40mL graduated glass flat-bottomed vial with scale; 40mL tailpipeconcentrated vial with scale
Anti-corrosive material PTFE or teflon are used for the solvent exposed parts, can endure the dichloride methonal solvent.
Instrument dimenstion 300W×170H×120Dmm
Power AC 220V
Gas supply Nitrogen 0.1—0.2MPa
Weight About 5KG





Test of 8 Solvents with E.T.


Experiment method

Parallel test among CH1-CH6 with conducting time and volume by using 5ml, 10ml, 20ml, 30ml, 40ml solvent as the test solution, using graduated cylinder to measure volume and stopwatch to measure time.


Boiling point


Boiling point







Methylene chloride


Ethyl acetate






Petroleum ether



Experiment result