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Packing capillary electrochromatography columns using vacuum – A preliminary study
Author(s) -
Qu Qishu,
Hu Xiaoya,
Zhu Xiashi,
Gao Shanmin,
Xu Qiang,
Wang Yubao,
Wang Xirong
Publication year - 2004
Publication title -
journal of separation science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.72
H-Index - 102
eISSN - 1615-9314
pISSN - 1615-9306
DOI - 10.1002/jssc.200401803
Subject(s) - capillary electrochromatography , electrochromatography , chromatography , capillary action , chemistry , capillary electrophoresis , materials science , composite material
This paper introduces a novel method for packing Capillary Electrochromatography Columns (CEC). Using vacuum packing methodology, silica particles as small as 1 μm were successfully packed into the capillary columns with 75 μm inner diameter. The columns are very stable and show no noticeable loss in efficiency after 200 sample injections. The performance of these vacuum packed capillary columns was evaluated with a mixture of aromatic and non‐aromatic compounds. A 24 cm long capillary column can produce peak efficiencies of around 45 000 plates for benzene.