溶胶-凝胶法制备开链冠醚毛细管气相色谱柱

Sol-gel Derived Open Chain Crown Ether Stationary Phase for Capillary Gas Chromatography

本文采用溶胶 凝胶技术涂渍了开链冠醚 (n =5 )毛细管气相色谱柱。这种涂柱技术与传统技术相比 ,具有高效 ( >30 0 0 )、样品容量大、耐高温 ( 32 0℃ )、抗溶剂冲洗等特点。低碳醇、酮、酯。

A new type of capillary gas chromatographic stationary phase containing open chain crown ether( n=5, OCCE) was fabricated by the sol gel process and coated onto the inner walls of a fused silica capillary.Multiple preparation steps in conventional column technology were avoided.The column demonstrates high column efficiency (3000 plates·m -1 ),good thermal stability(to 320℃) and a significant ability of deactivation.The sol gel OCCE column has a high column capacity in separating small molecular mass,such as low molecular mass alcohols,ketones and esters, short chain fatty acids and esters,volatile amines.