Columns For Oligo Synthesizers

Retro-Columns are synthesis columns that achieve high purity and yield improvements when used in commercial synthesizers built after 1984, including Expedite, ABI 39x series and Milligen synthesizers. The columns feature customized internal dimensions, accurate frit placement, a proprietary controlled porosity glass (CPG) that maximizes internal support, and a proprietary long chain linker for attaching nucleotides to the CPG. Columns are a necessary raw material for synthesis of custom DNA and RNA oligonucleotides.