A pre-concentration procedure using coprecipitation for detennination of lead and iron in several samples using flame atomic absorption spectrometry

saraçoğlu s., Soylak M., Peker D. S. K., Elci L., dos Santos W. N. L., Lemos V. A., ...Daha Fazla

ANALYTICA CHIMICA ACTA, cilt.575, sa.1, ss.133-137, 2006 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 575 Sayı: 1
  • Basım Tarihi: 2006
  • Doi Numarası: 10.1016/j.aca.2006.05.055
  • Dergi Adı: ANALYTICA CHIMICA ACTA
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.133-137
  • Anahtar Kelimeler: pre-concentration, coprecipitation, iron, lead, factorial design, SOLID-PHASE EXTRACTION, CLOUD-POINT EXTRACTION, FACTORIAL DESIGN, WATER SAMPLES, AMBERLITE XAD-4, NATURAL-WATERS, HEAVY-METALS, OPTIMIZATION, NICKEL, SYSTEM
  • Erciyes Üniversitesi Adresli: Evet

Özet

The present paper proposes a pre-concentration procedure for determination of lead and iron in several samples by flame atomic absorption spectrometry. In it, lead(II) and iron(III) ions are coprecipitated using the violuric acid-copper(H) system as collector. Afterwards, the precipitate is dissolved with 1 M HNO3 solution and the metal ions are determined. The optimization step was performed using factorial design involving the variables: pH, violuric acid mass (VA) and copper concentration (Cu).