MULTIELEMENT SOLID PHASE PRECONCENTRATION USING A CHELATING RESIN OF STYRENE DIVINYLBENZENE COPOLYMER AND APPLICATION FOR THE ANALYSIS OF SEAWATER AND FISH OTOLITHS BY INDUCTIVELY COUPLED PLASMA MASS SPECTROMETRY (ICP-MS)


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Zereen F., Yilmaz V. , Arslan Z.

ANALYTICAL LETTERS, vol.47, no.1, pp.58-76, 2014 (Journal Indexed in SCI) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 47 Issue: 1
  • Publication Date: 2014
  • Doi Number: 10.1080/00032719.2013.831428
  • Title of Journal : ANALYTICAL LETTERS
  • Page Numbers: pp.58-76

Abstract

A new chelating resin was synthesized by immobilizing 4-(2-thiazolylazo) resorcinol (TAR) on to a styrene divinylbenzene copolymer. This material was examined for on-line solid phase extraction/preconcentration of Cd, Co, Cu, Ni, Pb, and Zn in seawater and fish otoliths for determination by inductively plasma mass spectrometry (ICP-MS). A volume of 5.0mL sample solution was loaded on to a mini-column of the resin at 2.0mLmin(-1) via a sequential injection system. The optimum pH for multielement preconcentration was around pH 5.5. Recoveries were better than 96% in artificial seawater. Elution was achieved with 1.0mL of 0.75molL(-1) HNO3. The resin possesses a large sorption capacity ranging from 82.0 mu molg(-1) for Pb to 319 mu molg(-1) for Cu. The detection limits (3 sigma) varied between 0.0016 mu gL(-1) (Cd) and 0.015 mu gL(-1) (Zn) for preconcentration of 5.0mL blank solutions (pH 5.5). Relative standard deviation for three replicate runs was between 0.3% (Cd) and 6% (Zn) at the 1.0 mu gL(-1) level. The procedure was validated by analysis of a nearshore seawater and a fish otoliths certified reference material, and employed for coastal seawater and estuarine water samples.