Column system using diaion HP-2MG for determination of some metal ions by flame atomic absorption spectrometry

TÜZEN M., Soylak M.

ANALYTICA CHIMICA ACTA, cilt.504, sa.2, ss.325-334, 2004 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 504 Sayı: 2
  • Basım Tarihi: 2004
  • Doi Numarası: 10.1016/j.aca.2003.10.043
  • Dergi Adı: ANALYTICA CHIMICA ACTA
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.325-334
  • Anahtar Kelimeler: preconcentration, solid-phase extraction, microwave digestion, diaion HP-2MG, natural waters, SOLID-PHASE EXTRACTION, SURFACTANT-COATED ALUMINA, CHELATING DITHIZONE-SORBENT, WATER SAMPLES, TRACE AMOUNTS, ACTIVATED CARBON, SPECTROPHOTOMETRIC DETERMINATION, MIXED-MEDIA, PRECONCENTRATION, RESIN
  • Erciyes Üniversitesi Adresli: Evet

Özet

A column solid-phase extraction method for the preconcentration and determination of cadmium(H), copper(H), cobalt(II), iron(RI), lead(H), nickel(II) and zinc(II) dithizone chelates by atomic absorption spectrometry has been described. Diaion HP-2MG was used as adsorbent for column studies. The influences of the various analytical parameters including pH of the aqueous solutions, amounts of ligand and resin were investigated for the retentions of the analyte ions. The recovery values are ranged from 95 to 102%. The influences of alkaline and earth alkaline ions were also discussed. The preconcentration factor was 375, when the sample volume and final volume are 750 and 2 ml, respectively. The detection limits of the analyte ions (k = 3, N = 21) were varying 0.08 mug/l for cadmium to 0.25 mug/l for lead. The relative standard deviations of the determinations at the concentration range of 1.8 x 10(-4) to 4.5 x 10(-5) mmol for the investigated elements were found to be lower than 9%. The proposed solid-phase extraction procedure were applied to the flame atomic absorption spectrometric determinations of analyte ions in natural waters (sea, tap, river), microwave digested samples (milk, red wine and rice) and two different reference standard materials (SRM1515 apple leaves and NRCC-SLRS-4 riverine water). (C) 2003 Elsevier B.V. All rights reserved.