Fast analysis of capillary electrochromatography with non-porous ODS as the stationary phase

Citation
Lh. Zhang et al., Fast analysis of capillary electrochromatography with non-porous ODS as the stationary phase, ANAL LETTER, 32(13), 1999, pp. 2679-2690
Citations number
18
Categorie Soggetti
Chemistry & Analysis","Spectroscopy /Instrumentation/Analytical Sciences
Journal title
ANALYTICAL LETTERS
ISSN journal
00032719 → ACNP
Volume
32
Issue
13
Year of publication
1999
Pages
2679 - 2690
Database
ISI
SICI code
0003-2719(1999)32:13<2679:FAOCEW>2.0.ZU;2-K
Abstract
High-speed capillary electrochromatography was developed on both short and long packed columns with 2 mu m non-porous ODS as the stationary phase. Fac tors that affect the analysis time of samples, such as voltage, electrolyte concentration, pH and organic modifier concentration in the mobile phase, were studied systematically. Fast analysis of aromatic compounds within 13 seconds was realized with column efficiency of 573,000 plates/m and a R.S.D .% of the retention times of all components in 8 consecutive injections bel ow 1.0%. which demonstrated the high efficiency and high reproducibility of such a technique. In addition, DNPH derived aldehydes and ketones in both standards and environmental samples were separated with high speed.