Extraction, or liquid-liquid extraction, is another fundamental technique for isolation and purification of organic compounds. An associated technique is the subsequent drying of the organic liquid layer.

Using Teflon Stopcocks by Daniel A. Straus at San Jose State U
http://www.4chemistry.org/EXTRACTION%20htms/Stopcock.htm

Extraction by Daniel A. Straus at San Jose State U
http://www.4chemistry.org/EXTRACTION%20htms/Extraction.htm
http://www.chemistry.sjsu.edu/straus/EXTRACTION%20htms/Extraction.htm

Extraction: Top to Bottom QuickTime™ video by Dan Straus at San Jose State U
http://www.4chemistry.org/VIDEOS/extractiontopbottom.mov
http://www.chemistry.sjsu.edu/straus/VIDEOS/extractiontopbottom.mov

Extraction: Bottom to top QuickTime™ video by Dan Straus at San Jose State U
http://www.4chemistry.org/VIDEOS/extractionbottomtop.mov
http://www.chemistry.sjsu.edu/straus/VIDEOS/extractionbottomtop.mov

Extraction FAQ by Daniel A. Straus at San Jose State U
http://www.4chemistry.org/FAQ/Technique%20FAQ/ExtractionFAQ.htm
http://www.chemistry.sjsu.edu/straus/FAQ/Technique%20FAQ/ExtractionFAQ.htm

Extraction by Patty Feist at the University of Colorado --
a must-read --make sure to follow all the links!
http://orgchem.colorado.edu/hndbksupport/ext/ext.html
Extraction Real™ Movie by Tad Koch and Patty Feist
http://kubrick.colorado.edu:6060/ramgen/chemistry/Extraction.rm

Extraction by Scott Van Arman at Franklin & Marshall College
<http://www.fandm.edu/Departments/Chemistry/Van%20Arman%20Virtual%20Lab/Extraction/Extraction.html>

Also see the extraction lab page by Millam, Moyer and Suydam et al. at Phoenix College at
http://chemlab.pc.maricopa.edu/labbooks/230/extraction/index.html

A number of common organic lab techniques are discussed
by Drs. James Chickos, Vally D'Souza, and David Garin at U Missouri St. Louis at
http://www.umsl.edu/~orglab/documents/practice.htm

Extraction video by Yue-Ling Wong at Wake Forest University
http://www.bluffton.edu/~bergerd/classes/CEM221/Handouts/sep-funnel.html

Extraction instructions from Wake Forest University
http://www.wfu.edu/users/kingsb/Chem221Lab/skills/extract/extraction.htm

Extraction interactive tutorial [requires Chime™, Macromedia Flash™, and QuickTime™]
by Megumi Fujita, Helen M. Mah, Paulo W.M. Sgarbi, Manjinder S. Lall, Tai Wei Ly, and
Lois M. Browne at the University of Alberta
http://www.chem.ualberta.ca/~orglabs/separation/mastercopy/masterframe.html

The Separatory Funnel from SUNY Stony Brook
http://www.sinc.sunysb.edu/Class/orgolab/sepfun/sepfun~.ppt
http://www.sinc.sunysb.edu/Class/orgolab/sepfunnel.PDF