Analysis and Purification of Synthetic Nucleic Acids Using HPLC

HPLC is a powerful and popular method for analyzing and purifying biomolecules. Reversed-phase HPLC allows a high-capacity method for purification, and uses volatile buffer systems that simplify product recovery. Anion-exchange HPLC provides better resolution and a more predictable elution pattern. This unit presents protocols that are optimized for HPLC of oligonucleotides. Because of the resolution limits of both reversed-phase and anion-exchange HPLC, it can be used for oligonucleotides of up to ˜50 nt in length.