SEPARATION AND DETERMINATION OF TRACE Cu(II), Zn(II), AND Pd(II) AS THEIR TETRAPHENYLPORPHINE CHELATES BY REVERSED-PHASE HIGH PERFORMANCE LIQUID CHROMATOGRAPHY

Abstract

α,β,γ,δ-Tetraphenylporphine (TPP) was used as a precolumn chelating reagent for reversed-phase high performance liquid chromatographic (HPLC) separation and determination of trace Cu 2+ , Zn 2+ and Pd 2+ . Chelating reactions of TPP with Cu 2+ , Zn 2+ , and Pd 2+ have been optimized in the presence of anionic surfactant sodium dodecyl sulphate (SDS). TPP and its metal chelates were successfully separated on a Nucleosil C 18 column (150×4.6 mm I.D., 5 µm) with acetone-acetonitrile (37.5: 62.5, v/v) as mobile phase. 209