Sensitive peptide assay?

[Cornelius Krasel]

I wonder whether there is a sensitive peptide assay being able to detect
between 10 pmol and 1 nmol of a peptide.  I was thinking about UV detection
at 214 nm but I think that the extinction coefficient is not high
enough (when I assume that it's 1000 per peptide bond -- which is just
a wild guess -- I would be able to detect 1 nmol / 100 ul).

Any ideas?

--Cornelius.

-- 
/* Cornelius Krasel, U Wuerzburg, Dept. of Pharmacology, Versbacher Str. 9 */
/* D-97078 Wuerzburg, Germany   email: phak004 at rzbox.uni-wuerzburg.de  SP3 */
/* "Science is the game we play with God to find out what His rules are."  */