Selective extraction of iron oxide associated arsenic species from sediments for speciation with coupled HPLC-HG-AAS

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J. L. Gómez-Ariza, D. Sánchez-Rodas and I. Giráldez


Abstract

A procedure for the extraction of arsenic species from estuarine iron oxide rich sediments was developed based on the use of hydroxylammonium hydrochloride solution as leaching agent. Different variables such as extractant volume, concentration and time of extraction were used. Optimum conditions were obtained by using 40 ml of 0.4 M hydroxylammonium hydrochloride for 8 h at 95 °C with occasional shaking. Speciation of arsenic was performed with coupled HPLC-HG-AAS, using a strong anion-exchange column for the separation of arsenite, dimethylarsinic acid, monomethylarsonic acid and arsenate. The influence of the concentration of the extractant on the chromatographic separation was also studied. Complete recoveries of arsenic species required several repetitive extractions. Results obtained for CRM 320 River Sediment, certified for total arsenic concentration, were low, which indicated the influence of the matrix composition on the final extraction.


References

  1. A. C. Aurillo, R. P. Mason and H. F. Hemond, Environ. Sci. Technol., 1994, 28, 577.
  2. W. R. Cullen and K. J. Reimer, Chem. Rev., 1989, 89, 713 CrossRef.
  3. P. H. Masscheleyn, R. D. Delaune and W. H. Patrick, Jr., Environ. Sci. Technol., 1991, 25, 1414 CAS.
  4. M. O. Andreae, in Organometallic Compounds in the Environment, ed. P. J. Craig, Longman, Harlow, 1986, p. 198 Search PubMed.
  5. J. Gailer and K. J. Irgolic, Appl. Organomet. Chem., 1994, 8, 128 CrossRef CAS.
  6. X. C. Le, W. R. Cullen and K. J. Reimer, Environ. Sci. Technol., 1994, 28, 1598 CAS.
  7. M. B. Amran, F. Lagarde and J. F. Leroy, Mikrochim. Acta, 1997, 202, 195.
  8. D. Beauchemin, K. W. M. Siu, J. W. McLaren and S. S. Berman, J. Anal. At. Spectrom., 1989, 4, 285 RSC.
  9. E. H. Larsen, G. Pritzl and S. H. Hansen, J. Anal. At. Spectrom., 1993, 8, 1075 RSC.
  10. E. H. Evans and L. Ebdon, J. Anal. At. Spectrom., 1990, 5, 425 RSC.
  11. E. H. Larsen and S. Stürup, J. Anal. At. Spectrom., 1994, 9, 1099 RSC.
  12. R. Rubio, A. Padró and G. Rauret, Fresenius' J. Anal. Chem., 1995, 351, 331 CrossRef CAS.
  13. J. L. Gómez-Ariza, D. Sánchez-Rodas, R. Beltrán and I. Giráldez, Int. J. Environ. Anal. Chem., in press Search PubMed.
  14. I. Martin, M. A. López-Gonzálvez, M. Gómez, C. Cámara and M. A. Palacios, J. Chromatogr. B, 1995, 666, 101 CrossRef CAS.
  15. E. Hakala and L. Pyy, J. Anal. At. Spectrom., 1992, 7, 191 RSC.
  16. X. Zhang, R. Cornelis, J. de Kimpe and L. Mees, J. Anal. At. Spectrom., 1996, 11, 1075 RSC.
  17. K. J. Lamble and S. J. Hill, Anal. Chim. Acta, 1996, 334, 261 CrossRef CAS.
  18. D. Vélez, N. Ybáñez and R. Montoro, J. Anal. At. Spectrom., 1996, 11, 271 RSC.
  19. G. Rauret, R. Rubio and A. Padró, Fresenius' J. Anal. Chem., 1991, 340, 157 CrossRef CAS.
  20. W. C. Story, J. A. Caruso, D. T. Heitkemper and L. Perkins, J. Chromatogr. Sci., 1992, 30, 427 CAS.
  21. J. L. Gómez-Ariza, D. Sánchez-Rodas, R. Beltrán, W. Corns and P. Stockwell, Appl. Organomet. Chem., 1998, 12, 439 CrossRef CAS.
  22. E. A. Crescelius, N. S. Bloom, C. E. Cowan and E. A. Jenne, in Arsenic Speciation, EPRI, Batelle Northwest Laboratories, Washington DC, 1986, vol. 2, p. 1.8 Search PubMed.
  23. J. Dedina and D. L. Tsalev, in Hydride Generation Atomic Absorption Spectrometry, ed. J. D. Winefordner, Wiley, Chichester, 1995, p. 213 Search PubMed.
  24. B. Amran, F. Lagarde, M. J. F. Leroy, A. Lamotte, C. Desmeney, M. Ollé, M. Albert, G. Rauret and J. F. Lopez-Sanchez, in Quality Assurance for Environmental Analysis, ed. Ph. Quevauviller, E. A. Maier and B. Griepink, Elsevier, Amsterdam, 1995, vol. 17, p. 285 Search PubMed.
  25. P. Thomas, J. K. Finnie and J. G. Williams, J. Anal. At. Spectrom., 1997, 12, 1367 RSC.
  26. W. R. Cullen and K. J. Reimer, Chem. Rev., 1989, 89, 713 CrossRef.
  27. W. Maher and E. Butler, Appl. Organomet. Chem., 1988, 2, 191 CrossRef CAS.
  28. J. F. López-Sánchez, R. Rubio and G. Rauret, Int. J. Environ. Anal. Chem., 1993, 51, 113 CAS.
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