Pressurized planar electrochromatography of DNS amino acids derivatives in silica gel and silanized silica gel systems with formic acid addition to the water mobile phase

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作者
Adam Chomicki
Tadeusz H. Dzido
机构
[1] Medical University of Lublin,Department of Physical Chemistry
关键词
Pressurized planer electrochromatography; PPEC; Amino acids; Dansyl amino acids;
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摘要
Pressurized planar electrochromatography (PPEC) of dansyl (DNS) derivatives of amino acids in normal- and reversed-phase systems is presented. The results have been obtained for mobile phases with different acetonitrile (ACN) concentrations (0–85%). The data obtained show differences in separation selectivity between high-performance thin-layer chromatography (HPTLC) and PPEC systems. These differences originate from the electrophoretic effect which is involved in the PPEC system, contrary to the HPTLC one.
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页码:105 / 111
页数:6
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