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  • Title: HPLC purification of synthetic oligodeoxyribonucleotides containing base- and backbone-modified sequences.
    Author: Green AP, Burzynski J, Helveston NM, Prior GM, Wunner WH, Thompson JA.
    Journal: Biotechniques; 1995 Nov; 19(5):836-41. PubMed ID: 8588925.
    Abstract:
    Applications for a new polymer resin, PolyFlo, are described for both the small-scale and large-scale purification of synthetic oligodeoxyribonucleotides varying in length from 18-41 bases. The unique properties of this innovative resin provide > 95% purified full-length oligodeoxyribonucleotides with greater than 90% yield starting from either crude trityl-on or trityl-off unmodified as well as base (biotin)- or backbone (e.g., phosphorothioate)-modified products. Full biological activity of recovered nucleic acid is retained, and the resin is capable of removing contaminating endotoxins during purification. The resin performance is predictable and reliable. The resin can be regenerated easily and is particularly economic when employed directly in ammonia or with the trityl-off option. PolyFlo meets the requirements of current Good Manufacturing Practices.
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