An alternative GC-ICP-MS interface design for trace element speciation

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

María Montes Bayón, Manuel Gutiérrez Camblor, J. Ignacio García Alonso and Alfredo Sanz-Medel


Abstract

The design, construction and performance characteristics of an easily removable interface to couple a gas chromatograph (GC) to an inductively coupled plasma mass spectrometer (ICP-MS) for trace element speciation is described. The interface is based on the use of a heated metallic tube where the last part of the capillary GC column is inserted. This metallic tube is connected to a metallic T-piece where a flow of argon carrier gas is introduced perpendicularly and externally to the metallic tube, creating a high velocity flow of intermediate sheath gas, which prevents condensation of the analytes eluting from the column on the walls of the T-piece or on the connection tubing to the ICP-MS torch. A flexible non-heated PTFE tube is used to connect the exit of the T-piece to the ICP-MS torch. This new interface has been applied to the separation and detection of different organometallic compounds of Se, S, Pb, Hg and Sn.


References

  1. A. Prange and E. Jantzen, J. Anal. At. Spectrom., 1995, 10, 105 RSC.
  2. R. Lobinsky, Appl. Spectrosc., 1997, 51, 260A CAS.
  3. G. K. Zoorob, J. W. McKiernan and J. A. Caruso, Mikrochim. Acta, 1998, 128, 145 CAS.
  4. J. J. Thompson and R. S. Houk, Anal. Chem., 1986, 58, 2541 CrossRef.
  5. M. Heisterkamp, T. De Smaele, J. P. Candelone, L. Moens and F. C. Adams, J. Anal. At. Spectrom., 1997, 12, 1077 RSC.
  6. J. Feldmann, J. Anal. At. Spectrom., 1997, 9, 1069 RSC.
  7. N. P. Vela and J. A. Caruso, J. Chromatogr., 1993, 641, 337 CrossRef CAS.
  8. J. W. Olesik, J. A. Kinzer and S. V. Olesik, Anal. Chem., 1995, 67, 1 CrossRef CAS.
  9. H. Hintelmann, R. D. Evans and J. Y. Villeneuve, J. Anal. At. Spectrom., 1995, 9, 619 RSC.
  10. T. De Smaele, P. Verrept, L. Moens and R. Dams, Spectrochim. Acta, Part B, 1995, 11, 1409 CrossRef.
  11. L. Moens, T. De Smaele, R. Dams, P. Van Den Broeck and P. Sandra, Anal. Chem., 1997, 69, 1604 CrossRef CAS.
  12. N. S. Chong and R. S. Houk, Appl. Spectrosc., 1987, 41, 66 CAS.
  13. G. R. Peters and D. Beauchemin, J. Anal. At. Spectrom., 1992, 7, 965 RSC.
  14. A. W. Kim, M. E. Foulkes, L. Ebdon, S. J. Hill, R. L. Patience, A. G. Barwise and S. J. Rowland, J. Anal. At. Spectrom., 1992, 7, 1147 RSC.
  15. W. J. Pretorius, L. Ebdon and S. J. Rowland, J. Chromatogr., 1993, 646, 369 CrossRef CAS.
  16. T. De Smaele, L. Moens, R. Dams, P. Sandra, J. Vandereycken and J. Vandyck, J. Chromatogr. A, 1998, 793, 99 CrossRef.
  17. S. M. Gallus and K. G. Heumann, J. Anal. At. Spectrom., 1996, 11, 887 RSC.
  18. J. Poehlman, B. W. Pack and G. M. Hieftje, Am. Lab., 1998, 30, C50 Search PubMed.
  19. E. Segovia Garcia, J. I. García Alonso and A. Sanz-Medel, J. Mass. Spectrom., 1997, 5, 542 CrossRef.
  20. M. B. De La Calle-Guntiñas, C. Brunori, R. Scerbo, S. Chiavarini, P. Quevauviller, F. Adams and R. Morabito, J. Anal. At. Spectrom., 1997, 9, 1041 RSC.
  21. E. Segovia Garcia, J. I. García Alonso and A. Sanz-Medel, in Applications of Plasma Source Mass Spectrometry, ed. G. Holland and S. Tanner, Royal Society of Chemistry, Cambridge, 1997. p. 182 Search PubMed.
  22. L. Randall, O. F. X. Donard and J. H. Weber, Anal. Chim. Acta., 1986, 184, 197 CrossRef CAS.
  23. S. Pérez Méndez, M. Montes Bayón, E. Blanco González and A. Sanz-Medel, J. Anal. At. Spectrom., in the press Search PubMed.
Click here to see how this site uses Cookies. View our privacy policy here.