Seyhan, SerapMerdivan, MelekDemirel, NadirHosgoren, Halil2024-04-242024-04-2420080026-36721436-5073https://doi.org/10.1007/s00604-007-0797-9https://hdl.handle.net/11468/145185,10,15,20-tetrakis(phenoxy acetic acid) porphyrin (PAAP) was covalently linked to Merrifield chloromethylated resin. Characterization of PAAP and the modified polymeric matrix were performed by H-1 NMR, FTIR and elemental analysis. The sorbent was used for the separation and enrichment of the d-electron metals (Mn(II), Co(II), Ni(II), Cu(II) and Zn(II)) at pH 6-8 and of the f-electron metals U(VI) and Th(IV) at pH 4-5. The metals ions were preconcentrated with a concentration factor range of 115-215 and then determined by flame atomic absorption spectrometry or visible spectrophotometry using Arsenazo(III). The retained metals were eluted with 2.0 mol L-1 HNO3 in the case of the d-electron metals and 0.1/0.25mol L-1 HCl in the case of the f-electron metals. The procedure was validated by analyzing the NIST standard reference material 2709 (San Joaquin Soil).eninfo:eu-repo/semantics/closedAccessMerrifield Chloromethylated ResinPorphyrinPreconcentrationD- And F-Electron MetalsArticle1611-28793WOS:0002557424000062-s2.0-4344910885310.1007/s00604-007-0797-9Q1Q2