Liquid Chromatography

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Determination of di-(2-ethylhexyl)phthalate in environmental samples by liquid chromatography coupled with mass spectrometry

  1. Antonia Garrido Frenich,
  2. María de las Nieves Barco Bonilla1,
  3. Juan Carlos López Martínez2,
  4. José Luis Martínez Vidal1,
  5. Roberto Romero-González1

Article first published online: 27 MAR 2009

DOI: 10.1002/jssc.200900020

Issue

Journal of Separation Science

Journal of Separation Science

Volume 32, Issue 9, pages 1383–1389, May 2009

Additional Information

How to Cite

Garrido Frenich, A., de las Nieves Barco Bonilla, M., López Martínez, J. C., Martínez Vidal, J. L. and Romero-González, R. (2009), Determination of di-(2-ethylhexyl)phthalate in environmental samples by liquid chromatography coupled with mass spectrometry. Journal of Separation Science, 32: 1383–1389. doi: 10.1002/jssc.200900020

Author Information

  1. 1

    Group “Analytical Chemistry of Contaminants”, Department of Analytical Chemistry, Almeria University, Almería, Spain. Fax: +34-950-015-483

  2. 2

    Laboratory of Pesticide Residues, LAB, Calablanca Bajo, Almería, Spain

Publication History

  1. Issue published online: 27 APR 2009
  2. Article first published online: 27 MAR 2009
  3. Manuscript Accepted: 6 FEB 2009
  4. Manuscript Revised: 5 FEB 2009
  5. Manuscript Received: 12 JAN 2009

Funded by

  • Andelusian Regional Ministry of Innovation, Science, and Enterprise. Grant Number: P07-AGR-02922

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Keywords:

  • Di-(2-ethylhexyl)phthalate;
  • Environmental samples;
  • LC-MS;
  • Pressurized liquid extraction;
  • SPE

Abstract

Di-(2-ethylhexyl)phthalate (DEHP) was determined in environmental samples such as water and soil. DEHP was extracted from water samples using SPE, whereas for soils pressurized liquid extraction was applied as extraction method, using hexane/acetone (1:1, v/v) as extractant solvent. The use of HPLC coupled to MS provides the basis of the selective determination of DEHP in the analyzed samples. The extraction procedures were validated and good results were found. Recoveries were ranged from 86.0 to 99.8% with RSD lower than 18% and LODs were 0.02 mg/kg and 0.03 μg/L for soils and water, respectively. Finally, the optimized methods were applied to the analysis of real samples and DEHP was not found above the LOQ (0.05 mg/kg) in soil samples whereas it was detected in water samples at concentrations ranging between 0.19 to 0.88 μg/L.

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