CAPILLARY ELECTROCHROMATOGRAPHY WITH ALKYLPHOSPHONATE-MODIFIED MAGNESIA-ZIRCONIA AS THE CHROMATOGRAPHIC SUPPORT MATERIAL
- 31 August 2001
- journal article
- Published by Taylor & Francis Ltd in Journal of Liquid Chromatography & Related Technologies
- Vol. 24 (13), 1881-1894
- https://doi.org/10.1081/jlc-100104432
Abstract
A capillary electrochromatography with a new packing material, alkylphosphonate-modified magnesia-zirconia stationary phase (APMZ), was developed. The influence of some parameters such as pH, concentration of methanol and TRIS in the buffer on EOF, and chromatographic behavior of APMZ in CEC is investigated. It was found that, with a slight change in EOF over pH range from 4.5 to 9.3, the APMZ behaves as reserved-phase packing for polycyclic aromatic hydrocarbons (PAHs) and basic compounds. Furthermore, the ion-exchange interaction between APMZ and basic compounds at low pH was observed.Keywords
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