Amberlite XAD-7 resin impregnated with 2-(1-(4-chlorophenyl)-4,5-diphenyl-1H-imidazol-2yl)-4-nitrophenol for enrichment of metal ions

Ghaedi M., Karami B., Shamsaldini S., SOYLAK M.

JOURNAL OF SAUDI CHEMICAL SOCIETY, vol.18, no.5, pp.674-680, 2014 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 18 Issue: 5
  • Publication Date: 2014
  • Doi Number: 10.1016/j.jscs.2014.01.012
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.674-680
  • Keywords: 2-(1-(4-Chlorophenyl)-4,5-diphenyl-1H-imidazol-2yl)-4-nitrophenol, Heavy metal ions, Solid phase extraction, Flame atomic absorption spectrometry
  • Erciyes University Affiliated: Yes


The Amber lite XAD-7 resin modification was carried out by loading 2-(1-(4-chlorophenyl)-4,5-diphenyl-1H-imidazol-2yl)-4-nitrophenol (CPDPINP). Subsequently, this new sorbent was applied for the enrichment of metal ions such as Cu2+, Ni2+, Co2+ Zn2+ and Pb2+ ions. The effect of various parameters on their sorption and following recoveries was studied in column procedure. The preconcentrated ions were eluted by appropriate eluent and their contents were quantified by FAAS. This method has preconcentration factor of 150 and enrichment factor in the range of 20.8-29.1. At optimum values of all variables, the proposed method has linear calibration graphs in the range of 0.01 up to 0.29 mu g mL(-1) with detection limit (3SDb/m, n = 15) between 1.6 and 2.6 ng mL(-1). This protocol is usable for successful analysis of Cu2+, Ni2+ Co2+ Zn2+ and Pb2+ ions in different matrices with reasonable recoveries ( > 93%) and acceptable relative standard deviation ( < 4.7%). (C) 2014 King Saud University. Production and hosting by Elsevier B.V. All rights reserved.