Polyamide-Coated Open- Tubular Micro-Capillary Column for Liquid Chromatography

Abstract
An open-tubular micro capillary column was prepared by coating the inner wall of a pyrex tube (50 μm i.d.) with polyamide. Chromatographic behaviors of trace amounts of various phenolic compounds, benzoic acid derivatives and aromatic amino and nitro compounds, were examined on this column.