Preconcentration-separation of germanium at ultra trace levels on polysulfone membrane filter and its determination by spectrophotometry

SOYLAK M., YIGIT S.

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, cilt.24, ss.322-325, 2015 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 24
  • Basım Tarihi: 2015
  • Doi Numarası: 10.1016/j.jiec.2014.10.003
  • Dergi Adı: JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.322-325
  • Anahtar Kelimeler: Polysulfone membrane filter, Germanium, UV-vis spectrophotometer, Preconcentration, ATOMIC-ABSORPTION-SPECTROMETRY, SOLVENT-SOLUBLE MEMBRANE, SOLID-PHASE EXTRACTION, CLOUD-POINT EXTRACTION, ENVIRONMENTAL-SAMPLES, BRILLIANT GREEN, WATER, IONS, IRON, COPRECIPITATION
  • Erciyes Üniversitesi Adresli: Evet

Özet

A separation-preconcentration procedure for germanium has been presented. The optimum conditions including pH, sample volume, sample-eluent flow rates, sample and matrix effects for adsorption of germanium(IV) on polysulfone membrane filter were investigated prior to spectrophotometric determination of germanium as Ge(IV)-9-phenyl-3-fluorone complex. Ge(IV) was adsorbed on membrane at pH 4.0 and was eluted from membrane with phosphoric acid. The accuracy was checked by determination of germanium content of GBW 07402 soil certified reference material. The detection and quantification limits were found as 2.1 and 7.0 ng/L, respectively. The method was applied for determination of germanium in soil and water samples. (C) 2014 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.