Originally Posted by 3dDream
BTW if people have access to papers:
I don't wanna buy it.
I was thinking about designing and building some sort extractor.
I uploaded the paper plus most of its references, which includes a book, as well as two other papers that are related to C02 extraction. I can't vouch for the usefullness of these since I don't have the time to read them yet.
A high volume approach would be to buy a CO2 tank that connects to a bunch of fittings, a pressure regulator, a heating section, and a collector.
These are the critical properties of CO2
To reach the critical point of CO2, class 600 fittings are required as per ASME B16.5. Don't know how much those cost but they aren't cheap. I'd guess you could build the project for $100-$300, but I'm not sure.
I like the idea of just using dry ice in a 15 ml centrifuge tube. It wouldn't be critical C02, but I guess that isn't a problem if you aren't supplementing with ethanol.
I need to study for exams tho. The links below are mirrors of each other. If you find another article you need just post the DOI—this one for example is doi:10.1016/j.talanta.2004.05.049—or the next best thing is the author, title, year.
I made an email if you want to get a hold of me. It's dendrite210 [at] gmail.com