Preparation and Application of Porous Layer Open Tubular Capillary Columns with Narrow Bore in Liquid Chromatography / 分析化学

In recent years, micro/nano-scaled separation technique has attracted increasing attention due to its inherent advantages. The porous layer open tubular ( PLOT) capillary column is an important microcolumn form. Comparied to wide-bore PLOT capillary columns ( inner diameter >25 μm ) , the PLOT capillary columns with a narrow inner diameter yield higher separation efficiency and lower reagent consumption. In this paper, the preparation methods for porous layer open tubular capillary columns with narrow inner diameter, less than or equal to 25 μm, are reviewed. Detection techniques combined with mass spectrometry and their applications in liquid chromatography are also disussed.