My lab is looking at purchasing an ASE system and I'm curious about people's experiences. Do you find it easy/hard to maintain? Is it worth the money? Any insight would be greatly appreciated! Thanks!
I worked with it during FAMEs ( (fatty acid methyl esters), extraction and it was good and fast method. and it is easy to maintain but may be I worked with old model because some times I have a problems with temperature and pressure, and the extraction process stopped and you have to open the instrument and wait till the adjusment of pressure again.
but ofcourse it is fast than Soxhlet and other extraction methods, and required significant less solvent. and this another advantage.
regards
Dear Danielle,
If you have lots of samples, ASE works well because they have a good integrated offering which makes it really easy to progress to the next steps, and concentrate samples right into the vial and on into analysis.
Kinr regards,
Rob
Since 2000 ASE almost completely replaced the other extraction systems (soxhlet, ultrasounds etc.) in lab methods. Besides some short downtime periods, which can be avoided by preventive maintenance, it is a very reliable and adaptable technique, leading to consistent savings in time and consumables (solvents). Can't live without it :-) !
I used one for 12 year to extract pesticides from fish tissue. It was pretty easy to maintain. Biggest maintenance problems we had were either with clogging or with general pump issues (check values and the such). We did 98% of all maintenance and repairs to the instrument ourselves. Save us a lot of time and solvent.
We have 3 Dionex ASE systems (2 x ASE-200 + 1 x ASE-300) and one Buechi SpeedExtractor and work with some of them since nearly two decades in the field of contaminants analysis.
It almost completely replaced our soxhlet systems and saves us a lot of time and solvent. A big advantage is also the closed system of the ASE, therefore it is easier to avoid contamination effects e.g. from phthalates.
Both systems are well constructed, reliable and easy to handle. The main difference between the two systems is that Büchi works in parallel and the ASE serial. This has an influence on the usage, Büchi is well suited and faster for a limited number of samples at worktime, ASE can run with more samples over night.
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