dextran sulfate-- a cheaper source??

Michael Man mman at
Tue Apr 5 16:29:00 EST 1994

 	I use dextran sulfate in my hybridization solution.  It gives me very 
good results, but it is too expensive, $732 per 500 gms from Sigma.  Does 
anyone know a cheaper place to go?  Thanks for your help.
	Also I will be very grateful if you can suggest an alternative way 
to prepare prehyb. and hyb. solution.  I use GeneScreen transfer membrane and
UV-crosslink RNA. 

mman at

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