We report a method for the assay of proteins at concentrations

lower than 10-10 M with as little as 200 amol of

protein. High sensitivity is accomplished by derivatizing

the E-amino group of the protein’s ...

We report a method for protein labeling, separation by capillary electrophoresis

in a polymer sieving matrix, and detection by laser-induced fluorescence.

Different dyes are used to label standard and sample ...