Polymer supported 5,10,15,20-tetrakis(phenoxy acetic acid)porphyrin derivative for separation and preconcentration of d- and f-electron metals

SEYHAN BOZKURT S., MERDİVAN M., Demirel N., HOŞGÖREN H.

MICROCHIMICA ACTA, cilt.161, ss.87-93, 2008 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 161
  • Basım Tarihi: 2008
  • Doi Numarası: 10.1007/s00604-007-0797-9
  • Dergi Adı: MICROCHIMICA ACTA
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.87-93
  • Anahtar Kelimeler: merrifield chloromethylated resin, porphyrin, preconcentration, d- and f-electron metals, PHASE EXTRACTIVE PRECONCENTRATION, FLOW-INJECTION SYSTEM, TRACE-METALS, SILICA-GEL, RESIN, PORPHYRIN, ACID, ENRICHMENT, XAD-2, HPLC
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

5,10,15,20-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).