Epichlorohydrin crosslinked chitosan-clay composite beads for on-line preconcentration and determination of chromium(iii) by flow injection flame atomic absorption spectrometry

Cittan M., TİRTOM V. N., DİNÇER A., Çelik A.

Analytical Methods, cilt.6, sa.14, ss.5298-5303, 2014 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 6 Sayı: 14
  • Basım Tarihi: 2014
  • Doi Numarası: 10.1039/c4ay00638k
  • Dergi Adı: Analytical Methods
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.5298-5303
  • Manisa Celal Bayar Üniversitesi Adresli: Evet

Özet

An on-line flow injection preconcentration-flame atomic absorption spectrometry (FI-AAS) method is developed for trace determination of chromium(iii) by sorption on a mini-column packed with epichlorohydrin (ECH) crosslinked chitosan-clay composite beads. The factors affecting preconcentration of Cr(iii) ions such as sample and eluent flow rate, loading time, sample and eluent pH, and eluent type and concentration were investigated. The Cr(iii) ions were eluted from the mini-column with 0.1 M EDTA. Under the optimized parameters, the calibration graph using the preconcentration system for Cr(iii) was linear with a correlation coefficient of 0.9982. Detection and quantification limits of the method were obtained to be 0.0162 and 0.0929 μg mL-1 respectively, with an enrichment factor of 13.4. © 2014 The Royal Society of Chemistry.