Enrichment/separation of cadmium(II) and lead(II) in environmental samples by solid phase extraction

TÜZEN M., PARLAR K., Soylak M.

JOURNAL OF HAZARDOUS MATERIALS, cilt.121, ss.79-87, 2005 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 121
  • Basım Tarihi: 2005
  • Doi Numarası: 10.1016/j.jhazmat.2005.01.015
  • Dergi Adı: JOURNAL OF HAZARDOUS MATERIALS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.79-87
  • Anahtar Kelimeler: preconcentration, chromosorb-106, solid phase extraction, environmental samples, atomic absorption spectrometry, ATOMIC-ABSORPTION-SPECTROMETRY, HEAVY-METAL IONS, VOLATILE ORGANIC-COMPOUNDS, SURFACTANT-COATED ALUMINA, SPECTROPHOTOMETRIC DETERMINATION, MICROCRYSTALLINE NAPHTHALENE, WATER SAMPLES, WASTE-WATER, PRECONCENTRATION, TRACE
  • Erciyes Üniversitesi Adresli: Evet

Özet

A preconcentration/separation procedure is presented for the solid phase extraction of trace cadmium and lead ions as their 1-(2-pyridylazo) 2-naphthol (PAN) chelates in environmental samples on Chromosorb-106 resin, prior to cadmium and lead determinations by atomic absorption spectrometry. The preconcentration procedure was optimized by using model solutions containing cadmium and lead ions. The influences of pH of the model solutions, amounts of PAN, eluent type and volume etc. were investigated. Also the effects of the matrix constituents of the samples were also examined. Separation of cadmium and lead from real samples was achieved quantitatively. The procedure presented was checked with the analysis of microwave-digested standard reference materials (IAEA-336 Lichen and SRM 1515 Apple leaves). The preconcentration procedure was applied for the lead and cadmium contents of the natural water samples, some salts with satisfactory results (recoveries > 95 %, relative standard deviations < 8 %). (c) 2005 Elsevier B.V. All rights reserved.