Chromatographia
Volume 54, Numbers 1-2, 114-116, DOI: 10.1007/BF02491843

Short Communications

Simultaneous separation and determination of Cu(II), Fe(III), and Pb(II) by reversed-phase ion-pair chromatography withN,N,N′, N′-ethylene-diaminetetrakis(methylenephosphonic Acid)

C. Y. Li, J. Z. Gao, S. Y. Yu, X. Q. Han, B. Y. Li and H. T. Liu

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Abstract

A reversed-phase ion-pair chromatographic (RPIPC) method withN,N,N′, N′-ethylenediaminetetrakis(methylenephosphonic acid) (EDTMP) as coordinating agent has been developed for simultaneous separation and detection of Cu(II), Fe(III), and Pb(II) ions. Response is linearly dependent on amount of sample over the range 9.52–50.8 μg mL−1 for Cu(II), 8.31–41.8 μg mL−1 for Fe(III), and 37.3–51.8 μg mL−1 for Pb(II). The method has been applied successfully to an artificial mixed-ore sample.

Key Words  Column liquid chromatography - Ion-pair chromatography -  N,N,N′, N′-ethylenediaminetetrakis(methylenephosphonic acid) - Cu(II), Fe(III), and Pb(II) ions

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