RNA Scans- Weird Traces

[mbarnhart at my-dejanews.com]

Our laboratory is using Guanidinium-thiocyanate/acid phenol to purify RNA
from muscle tissue.  Lately, our spectrophotographs have been showing strange
peaks that max out at 270.  This has been consistent across virtually every
sample for a  couple of weeks  now.  If anyone has any ideas what this
contaminant might be, how we are getting it, or how to get rid of it, could
you let me know?  This is getting bothersome at this point.

Thanks
Michael Barnhart
Laboratory Supervisor
Connective Tissue Physiology Lab
University of Houston

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