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Michelle,
Attached is a response from the person in charge of the organic wet lab at Air Products.
John
Several years ago, we evaluated a CEM MARS extraction system and a Dionex unit to replace Soxhlet extraction of polymers. The MARS system was cumbersome, and there were safety concerns related to pressurized, heated solvents. Because it heats with microwaves, special techniques are needed to heat nonpolar solvents like toluene. The Dionex system was more convenient, used smaller vessels, and was applicable to more solvents. Neither system could replicate our results for soluble polymer by Soxhlet extraction. I suspect accelerated solvent extraction is more likely to match Soxhlet results when extracting additives or low molecular weight components.
From: labmanagers@yahoogroups.com [mailto:labmanagers@yahoogroups.com] On Behalf Of Wallace, Michele
Sent: Tuesday, June 06, 2006 1:01 PM
To: labmanagers@yahoogroups.com
Subject: [labmanagers] source for and info on ASE
Hello,
We are considering purchasing an accelerated solvent extraction or pressurized solvent extraction system. I have info from Dionex and Applied Separations, but I need to get a third source if possible. Does anyone have a suggestion? Also, does anyone have any recommendations or just comments about their experience using ASE versus standard Soxhlet? Any insight to help with the decision will be most welcome.
Thanks.
Michele L. Wallace
Associate Director, Textile Chemistry and Finishing Research
Cotton Incorporated
Phone: 919-678-2417
MWallace@...
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