Abstract − Analytical Sciences, 23(3), 371 (2007).
Application of an in-situ Thermo-polymerized Porous Polymer: Creation of an On-column Frit for a Packed Capillary HPLC Column
Jiping MA,*,** Mingyu DING,** Yan XU,*** and Lingxin CHEN**
*Institute of Environment & Municipal Engineering, Qingdao Technological University, Qingdao 266033, P. R. China
**Key Lab of Bioorganic Phosphorus Chemistry & Chemical Biology, Ministry of Education, Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China
***School of the Earth Sciences and Resources, China University of Geosciences, Beijing 100083, P. R. China
**Key Lab of Bioorganic Phosphorus Chemistry & Chemical Biology, Ministry of Education, Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China
***School of the Earth Sciences and Resources, China University of Geosciences, Beijing 100083, P. R. China
A 3-mm length of a porous monolithic polymer was prepared in a 0.32-mm inner-diameter fused-silica capillary by an in-situ thermo-polymerization method and used as an on-column frit for a packed capillary HPLC column. The on-column frit can resist high pressure up to 400 bar. A 5-µm packing material was packed in the capillary with the on-column frit by a slurry method. At pressure driving mode, separation of samples was performed using the capillary HPLC column. The in-situ frit preparation method has the advantages of easy preparation, easy control of the location of the frit and a mild preparing reaction condition.
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