Combination of cloud point extraction and flame atomic absorption spectrometry for preconcentration and determination of nickel and manganese ions in water and food samples

Sahin Ç., Efecinar M., ŞATIROĞLU N.

JOURNAL OF HAZARDOUS MATERIALS, cilt.176, ss.672-677, 2010 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 176
  • Basım Tarihi: 2010
  • Doi Numarası: 10.1016/j.jhazmat.2009.11.084
  • Dergi Adı: JOURNAL OF HAZARDOUS MATERIALS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.672-677
  • Anahtar Kelimeler: Preconcentration, Cloud point extraction, Flame atomic absorption spectrometry, Nickel, Manganese, Magneson I, ENVIRONMENTAL-SAMPLES, NATURAL-WATER, COPPER, IRON, ZINC, SEPARATION, COBALT, NI, METALS, MILK
  • Hacettepe Üniversitesi Adresli: Evet

Özet

A simple, rapid, inexpensive, and nonpolluting cloud point extraction (CPE) technique has been improved for the preconcentration and determination of nickel and manganese. After complexation with p-nitrophenylazoresorcinol (Magneson 1), the analytes could be competitively extracted in a surfactant octylphenoxy polyethoxyethanol (Triton X-114), prior to determination by flame atomic absorption spectrometry (FAAS). The effects of experimental conditions such as pH, concentration of chelating agent and surfactant, equilibration temperature and time on CPE were studied. Under the optimum conditions, preconcentration of a 25 mL sample solution permitted the detection of 2.7 ng mL(-1) Ni2+ and 2.9 ng mL(-1) Mn2+ with enrichment factors of 17 and 19 for Ni2+ and Mn2+, respectively. The developed method was applied to the determination of trace nickel and manganese in water and food samples with satisfactory results. (C) 2009 Elsevier B.V. All rights reserved.