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[Greg LaMonte]

Hello,

          I've been working with larval extracts, and my samples have a 
yellow/brown color.  I tried filtering the color away with a spin filtration 
tube (4k size), but it didn't get rid of it.  The reason this coloration is 
a problem is that I believe the same substance that causes this coloration 
also collets at the top of the gel filtration column when the extract is run 
through said columns.  I am hoping someone can identify what might be 
causing the coloration, and how to get rid of it in subsequent larval 
preparations.  Any help would be appreciated.

-Greg LaMonte


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