A novel stationary phase: Capillary-channeled polymer (C-CP) fibers for HPLC separations of proteins

Dwella K. Nelson, R. Kenneth Marcus

Research output: Contribution to journalArticlepeer-review

38 Scopus citations

Abstract

A novel stationary phase is demonstrated for the separation of proteins. Capillary-channeled polymer (C-CP) fibers provide a stationary phase that is characterized by a high surface activity (yielding strong wicking action) and drastically reduced back pressures. Columns prepared by pulling approximately 1200 50-μm diameter polypropylene C-CP fibers through stainless steel tubing with column dimensions of 4.6-mm i.d. and 306-mm length exhibit reversed-phase characteristics in the separation of the proteins. A gradient method [95:5 water-acetonitrile (ACN)/propanol (1:1) to 35:65 water-ACN/propanol] with trifluoroacetic acid added as an ion-pairing agent yields high-quality separations of superoxide dismutase, hemoglobin, hemocyanin, and myoglobin. It is believed that the C-CP fiber stationary phase holds a number of promising traits for applications in both analytical and prep-scale separations of diverse organic species, including a wide range of biomolecules.

Original languageEnglish (US)
Pages (from-to)475-479
Number of pages5
JournalJournal of Chromatographic Science
Volume41
Issue number9
DOIs
StatePublished - Oct 2003
Externally publishedYes

ASJC Scopus subject areas

  • Analytical Chemistry

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