Optimized methods for utilizing and analyzing dialkylamine tags in encoded
combinatorial chemistry are reported. A previously described LC/fluorescenc
e method has been shortened from over 1 h to 6 min. A novel ion exchange LC
/MS method for decoding has been developed which is both fast and rugged. T
he use of quantitative encoding schemes is described. These new techniques
have allowed a simplified, automated sample preparation scheme, and over 30
0 encoded bead samples can be read in a day.