We've also seen Fe contamination in protein and peptide samples when
using the Waters/Micromass CapLC. Apparently enough people have the
same problem that Waters is doing a study to determine the source of the
Fe.
We know Fe is coming from the CapLC because we've observed it on our LCQ
Deca immediately after connecting the LC.
-- Damon Barbacci, Ph.D. Washington University Mass Spectrometry Facility Department of Chemistry, Campus Box 1134 One Brookings Drive St. Louis, MO 63130
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