Raith: black dots on holder

[Dan Grupp]

Hi Everybody,
   I found the holder today covered (like over 4") with little black
specks. They came off in IPA, so i presume they were the sticky dots.
Please clean the holder if what you put in leaves something behind! I am
also concerned about this stuff migrating to the column, where recently we
had major contamination problems,
 Thanks,
Dan

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Dr. Daniel Grupp, Visiting Scholar
Center for Integrated Systems
Stanford University
Stanford, CA 94305
(650) 724-6911
FAX:  723-4659
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