Microchimica Acta

, Volume 171, Issue 1–2, pp 161–168

Attapulgite modified with 2-hydroxy-1-naphthaldehyde as selective solid-phase extractant for determination of copper(II) in environmental samples by ICP-OES

  • Zhenhua Li
  • Li Zhang
  • Zhipeng Zang
  • Xijun Chang
  • Xiaojun Zou
Original Paper

Abstract

Attapulgite modified with 2-hydroxy-1-naphthaldehyde was prepared and applied to the separation, preconcentration and determination of Cu(II) in aqueous solutions by inductively coupled plasma optical emission spectrometry. Experimental conditions for effective adsorption of trace levels of Cu(II) were optimized using batch and column procedures. The optimum pH value for the separation of Cu(II) on the newly sorbent was 4.0 and complete elution of Cu(II) from the sorbent surface was carried out using 2 mL of 0.01 mol L−1 HCl. The adsorption capacity for Cu(II) was 25.13 mg g−1. The detection limits of the method defined by IUPAC were found to be 0.24 μg L−1 with enrichment factor of 150. The method has been applied to the determination of Cu(II) in certified reference materials and natural water samples with satisfactory results.

Keywords

Modified attapulgite 2-hydroxy-1-naphthaldehyde Copper determination Solid-phase extraction Inductively coupled plasma optical emission spectrometry 

Copyright information

© Springer-Verlag 2010

Authors and Affiliations

  • Zhenhua Li
    • 1
  • Li Zhang
    • 1
  • Zhipeng Zang
    • 1
  • Xijun Chang
    • 1
    • 2
  • Xiaojun Zou
    • 3
  1. 1.Department of ChemistryLanzhou UniversityLanzhouPeople’s Republic of China
  2. 2.Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu ProvinceLanzhouPeople’s Republic of China
  3. 3.Jining Vocational Technology CollegeJining, Shandong 272100People’s Republic of China

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