title: High-resolution analysis and purification of synthetic oligonucleotides with strong anion-exchange HPLC.
abstract: A strong anion-exchange high-performance liquid chromatography column, the NucleoPac PA-100, has been developed for high-resolution analysis and purification of synthetic oligonucleotides. Very high-resolution separations of oligonucleotides to 60 bases can be obtained. Separations can be performed under non-denaturing or denaturing conditions because the column can be operated routinely at high temperature or high pH. Analytical methods can be directly transferred to larger NucleoPac PA-100 columns for semi-preparative applications. In this report, methods for the analysis of synthetic oligonucleotides under non-denaturing (pH 8.0) and denaturing (pH 12.4) conditions are presented. A gradient separation for machine-grade DNA at pH 8.0 is developed. Transfer of an analytical method to a 22-mm-diameter semi-preparative column is also demonstrated.
authors.affiliation: Dionex Corporation, Sunnyvale, CA, USA.
authors.forename: W A
authors.initials: WA
authors.lastname: Ausserer
authors.forename: M L
authors.initials: ML
authors.lastname: Biros
mesh_terms: D001483:Base Sequence; D002851:Chromatography, High Pressure Liquid; D002852:Chromatography, Ion Exchange; D006863:Hydrogen-Ion Concentration; D008969:Molecular Sequence Data; D009841:Oligonucleotides / Q000032:analysis / Q000302:isolation & purification*
chemical_list: D009841:Oligonucleotides