国产国语成人毛片高清视频_乱色伦无码视频观看_日韩毛片大全_国产日韩欧美高清_992tv在线无码视频_怡红院最新免费全部视频_日韩美女牲交免费观看视频_美人妻出差被寝取中文字幕_最新热播日韩AV无码精品_一本大道av伊人久久综合蜜芽

　　Coupling columns of same or different resin materials is often employed in complex proteomic digest analysis. Despite enhanced separation, these multidimensional columns are costly, timeconsuming to produce, and initiate post-column loss by deadvolume introduction. Confounding factors of column-coupling can be eliminated via transparent, true zero-dead-volume (ZDV) unions that achieve flush connections and rapid swap-out facility during system maintenance. In the current investigation, two conventional 10 cm-bedded columns were coupled and connected to the bed terminus of a third 10 cm nanobore column with integrally fritted tip. Analytical merit of this extended column was compared with a single 30 cm-bedded column with integrally fritted tip and the same resin material. These novel unions supported chromatographic data collection with zero dead-volume, negligible resolution loss, and comparable caliber as the single 30 cm-bedded column.

點擊下載：復(fù)雜蛋白組的多柱耦合分析