Hello All,
	I'm not sure if it was using plastic or old chloroform (I was using 
both) but I tried with fresh chemicals and a glass vial and it worked 
fine.  Thanks for the helpful comments!

Mario Muscedere       
Biology Department
Boston University
5 Cummington Street
Boston, MA, 02215 
Office: 409 BRB
Office #: 617-353-6977
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