Abstract
The ion-pair high-performance liquid chromatographic retention behavior of copper(II)–1-oxa-4,7,10,13-tetraazacyclopentadecane (Cu(II)–OTACP) complex is discussed with data from indirect spectrophotometric detection on the μBondapak CN column. The mobile phase was acetonitrile solution (MeCN:H2O 20:80) containing sodium dodecyl sulfate (SDS) as ion-pairing reagent and sodium 1-naphthalenesulfonate (SNS) as detection reagent. The effects of the concentration of SDS and OTACP added to the sample solution to form the Cu(II)–OTACP complex on the capacity factor of the complex, k′, are illustrated. As a consequence of the study, it was found that two peaks anticipated for the 1:1 and 1:2 mole ratio complexes appeared, and the peak anticipated for the 1:2 mole ratio complex could be used to determine the Cu(II) ion. The method has been applied in the determination of Cu(II) ion in waste water and serum.
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