Skip to main content
padlock icon - secure page this page is secure

Column-mode separation and pre-concentration of some heavy metal ions by solvent-impregnated resins containing quinizarin before the determination by flame atomic absorption spectrometry

Buy Article:

$61.00 + tax (Refund Policy)

A simultaneous separation and pre-concentration of Cd(II), Cu(II), Ni(II) and Zn(II) ions from natural water samples for subsequent flame atomic absorption spectrometric determination was proposed. The procedure is based on sorption of the metal ions at the buffering pH of 9.5, on a short column filled with Amberlite XAD-16 impregnated with the complexing agent of 1,4-dihydroxyanthraquinone (quinizarin). The determinations, without the interference of the co-existing substances, were carried out after metals elution with 5 mL of 0.5 mol L-1 HCl. A pre-concentration factor of nearly 100 was obtained using aliquots of 500 mL of the sample solution. For the optimisation of the procedure, effects of sample and eluent flow rate, eluent concentration and its volume were investigated. Beer's law was obeyed in the range of 5.0 × 10-9 to 1.0 × 10-7 mol L-1 for Cd(II) and Zn(II), 5.0 × 10-8 to 1.0 × 10-6 mol L-1 for Cu(II) and Ni(II) ions. The relative standard deviations of the determinations were <1.87%. The limit of detections for Cd(II), Cu(II), Ni(II) and Zn(II) were found to be 1.3 × 10-9, 7.1 × 10-9, 1.3 × 10-8 and 1.8 × 10-9mol L-1, respectively. The practical applicability of the method was confirmed using a synthetic certificated reference material and spiked natural water samples.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
No Metrics

Keywords: Amberlite XAD-16; column-mode separation; flame atomic absorption spectrometry; quinizarin; solvent-impregnated resins

Document Type: Research Article

Affiliations: Department of Chemistry, Faculty of Science, University of Birjand, Iran

Publication date: January 1, 2009

More about this publication?
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more