View PDF Version
 
DOI: 10.1039/A606747F (Paper) Reference Section for: Analyst, 1997, 122, 331-336

Determination of Cadmium in Environmental Samples by Hydride Generation with In Situ Concentration and Atomic Absorption Detection

(Note: The full text of this document is currently only available in the PDF Version )

Henryk Matusiewicz, Mariusz Kopras and Ralph E. Sturgeon

Abstract

A volatile Cd species (presumed to be the hydride) was generated from aqueous solutions by merging sample and tetrahydroborate reductant in a continuous-flow system. The gaseous analyte was transferred onto the inner wall of a graphite tube furnace for in situ preconcentration at 200 °C. Calibration was achieved via the method of standard additions. An absolute detection limit (3ςblank) of 10 pg was obtained using KBH4 as reductant. The precision of the determination was 12% (RSD) for a Cd concentration of 0.2 ng ml-1 using KBH4. The method was successfully applied to the determination of Cd in several certified environmental reference materials (soil, sediment, sea-water, biological samples) following pressure digestion of the samples by microwave heating in a mixture of acids.

References

  1. M. Stoeppler, Int. J. Environ. Anal. Chem., 1986, 27, 231 CAS.
  2. T. Nakahara, in Advances in Atomic Spectroscopy, ed. Sneddon, J., JAI Press, Greenwich, 1995, vol. 2, pp. 139–178 Search PubMed.
  3. A. D'Ulivo and Y. Chen, J. Anal. At. Spectrom., 1989, 4, 319 RSC.
  4. L. Ebdon, P. Goodall, S. J. Hill, P. B. Stockwell and K. C. Thompson, J. Anal. At. Spectrom., 1993, 8, 723 RSC.
  5. M. C. Valdés-Heviay Temprano, M. R. Fernández de la Campa and A. Sanz-Medel, J. Anal. At. Spectrom., 1994, 9, 231 RSC.
  6. J. Cacho, I. Beltrán and C. Nerin, J. Anal. At. Spectrom., 1989, 4, 661 RSC.
  7. M. C. Valdés-Heviay Temprano, M. R. Fernández de la Campa and A. Sanz-Medel, J. Anal. At. Spectrom., 1993, 8, 847 RSC.
  8. A. Sanz-Medel, M. C. Valdés-Heviay Temprano, N. Bordel Garcia and M. R. Fernández de la Campa, Anal. Chem., 1995, 67, 2216 CrossRef CAS.
  9. X. Guo and X. Guo, Anal. Chim. Acta, 1995, 310, 377 CrossRef CAS.
  10. X.-W. Guo and X.-M. Guo, J. Anal. At. Spectrom., 1995, 10, 987 RSC.
  11. K. Matsumoto, Bunseki, 1996, 4, 293 Search PubMed.
  12. H. Matusiewicz and R. E. Sturgeon, Spectrochim. Acta, Part B, 1996, 51, 377 CrossRef.
  13. H. G. Infante, M. L. Fernández Sánchez and A. Sanz-Medel, J. Anal. At. Spectrom., 1996, 11, 571 RSC.
  14. P. Bermejo-Barrera, J. Moreda-Piňeiro, A. Moreda-Piňeiro and A. Bermejo-Barrera, J. Anal. At. Spectrom., 1996, 11, 1081 RSC.
  15. M. R. Fernández de la Campa, E. Segovia García, M. C. Valdés Heviay Temprano, B. Aizpún Fernández, J. M. Marchante Gayón and A. Sanz-Medel, Spectrochim. Acta, Part B, 1995, 50, 377 CrossRef.
  16. A. Sanz-Medel, M. C. Valdés-Heviay Temprano, N. Bordel García and M. R. Fernández de la Campa, Anal. Proc., 1995, 32, 49 RSC.
  17. H. Matusiewicz, J. Anal. At. Spectrom., 1989, 4, 265 RSC.
  18. H. Matusiewicz, Chem. Anal. (Warsaw), 1995, 40, 667 Search PubMed.
  19. H. Matusiewicz, Anal. Chem., 1994, 66, 751 CrossRef CAS.
  20. R. E. Sturgeon, S. N. Willie and S. S. Berman, Anal. Chem., 1985, 57, 2311 CrossRef CAS.
  21. R. E. Sturgeon, J. Liu, V. J. Boyko and V. T. Luong, Anal. Chem., 1996, 68, 1883 CrossRef CAS.
  22. I. L. Shuttler, M. Feuerstein and G. Schlemmer, J. Anal. At. Spectrom., 1992, 7, 1299 RSC.
Click here to see how this site uses Cookies. View our privacy policy here.