Abstract
On-column complexation of metal ions with 2,6-pyridinedicarboxylate (2,6-PDC) to form anionic complexes enabled their separation by capillary zone electrophoresis with direct UV detection at 214 nm. Nine metal ions, Cu 2+, Zn 2+, Ni 2+, Cd 2+, Mn 2+, Pb 2+, Fe 3+, Al 3+ and Ca 2+, were determined in less than 7 min using10 m M 2,6-PDC solution containing 0.75 m M tetradecyltrimethylammonium bromide at pH 4.0. Satisfactory working ranges (20–300 μ M), detection limits (3–10 μ M) and good repeatability of the peak areas (RSD 2.1–4.2%, n=5) were obtained using hydrodynamic injection (30 s). The proposed method was used successfully for the determination of Mn 2+, Fe 3+, Al 3+ and Ca 2+ in groundwaters.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
