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Simultaneous Determination of Inorganic Anions and Equally Charged Complexes of Transition Metals with Polyaminocarboxylic Acids by Capillary Electrophoresis

Simultaneous Determination of Inorganic Anions and Equally Charged Complexes of Transition Metals with Polyaminocarboxylic Acids by Capillary Electrophoresis

O.V. Krokhin, W. Xu, H. Hoshino, O.A. Shpigun, T. Yotsuyanagi

Chem. Lett., p. 1065-1066 (1996)

ABSTRACT. High efficiency Capillary Electrophoresis (CE) separation (440-760 thousand theoretical plates per meter) of metal-edta and inorganic anions has been demonstrated using Kinetic Differentiation mode - Ion-Exchange Electrokinetic Chromatography (EKC). Aromatic homolog of polyaminocarboxylate - Quin2 - has been used for the increase of detection sensitivity. The detection limits of transition metals were found in the range of 0.59-1.90 micromoles.

Laboratory of Chromatography