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

被引:0
|
作者
Chomicki, Adam [1 ]
Dzido, Tadeusz H. [1 ]
机构
[1] Med Univ Lublin, Dept Phys Chem, Chodzki 4a Str, PL-20098 Lublin, Poland
关键词
Pressurized planer electrochromatography; PPEC; Amino acids; Dansyl amino acids; THIN-LAYER-CHROMATOGRAPHY; CAPILLARY ELECTROCHROMATOGRAPHY; SEPARATION; PERFORMANCE; PEPTIDES; ENANTIOMERS; RESOLUTION; RETENTION; APPARATUS; SOLVENT;
D O I
10.1007/s00764-021-00099-4
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
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:7
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