capillary electrophor. - sensitivity w/fluorescence??
Neil.Clarke at qmail.bs.jhu.edu
Wed Sep 21 17:18:11 EST 1994
Hi, I'm posting this for my wife. Any comments/experience on capillary
electrophoresis and/or sub-nM detection of fluorescently labelled proteins
I am trying to develop a non - antibody-dependent assay for a very basic
protein (pI >10), MW 12000 which will be reasonably quantitative and
sensitive down to the 1nM range. The samples are in plasma. From reading
some papers on
capillary zone electrophoresis, I have the impression that I might be able
get this sensitivity with CZE if I use isotachophoretic preconcentration
coupled with a fluorescent tag derivatization technique. My instrument can
detect fluorescence but it's not laser-induced. Any thoughts on the
feasibility of reaching this level of detection with CZE? Any other advice
or tips would be most welcome.
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