Determination of organotin compounds by liquid chromatography-inductively coupled plasma mass spectrometry with a direct injection nebulizer

Abstract

Inductively coupled plasma mass spectrometry (ICP-MS) coupled with direct injection nebulization was used as a liquid chromatographic detection method for the determination of butyltin compounds. Mono-, di- and tributyltin were separated by reversed phase liquid chromatography with 5 mm sodium 1-pentanesulfonate and 0.1% tropolone as the ion pairing reagent and 80% methanol and 2% acetic acid as the organic modifier. The separation was complete in less than 4 min. Detection limits were in the range 1.8-2.5 pg Sn for various tin compounds. The relative standard deviation of the peak areas for five injections of 10 ng ml^–1 organotin mixture was in the range 5-8%. This method was applied to the determination of various butyltin compounds in harbour sediment reference sample PACS-2 and a sediment sample collected from the Taiwan Strait. A simple and rapid microwave-assisted extraction method was used for the extraction of organotin compounds from marine sediments. The analyte species were leached quantitatively with acetic acid and sodium 1-pentanesulfonate in a focused microwave field during a period of 3 min.

References

1. U. T. Kumar, J. G. Dorsey, J. A. Caruso and E. H. Evans, J. Chromatogr., 1993, 654, 261.
2. T. Ferri, E. Cardarell and B. M. Petronio, Talanta, 1989, 36, 513.
3. I. Tolosa, J. M. Bayona, J. Albaiges, L. F. Alencastro and J. Tarradellas, Fresenius' J. Anal. Chem., 1991, 339, 646.
4. E. Pobozy, B. Pedersen and M. Trojanowicz, J. Chromatogr., 1995, 718, 329.
5. X. Dauchy, R. Cottier, A. Batel, R. Jeannot, M. Borsier, A. Astruc and M. Astruc, J. Chromatogr. Sci., 1993, 31, 416.
6. A. P. Walton, G.-T. Wei, Z. Liang, R. G. Michel and J. B. Morris, Anal. Chem., 1991, 63, 232.
7. L. Ebdon, S. J. Hill and P. Jones, Talanta, 1991, 38, 607.
8. O. Nygren, C.-A. Nilsson and W. Frech, Anal. Chem., 1988, 60, 2204.
9. P. Rivaro, L. Zaratin, R. Frache and A. Mazzucotelli, Analyst, 1995, 120, 1937.
10. H. Suyani, J. Creed, T. Davidson and J. Caruso, Appl. Spectrosc., 1989, 43, 962.
11. H. Suyani, D. Heitkemper, J. Creed and J. Caruso, J. Chromatogr. Sci., 1989, 27, 139.
12. C. Rivas, L. Ebdon and S. J. Hill, J. Anal. At. Spectrom., 1996, 11, 1147.
13. Y. Inoue, K. Kawabata and Y. Suziki, J. Anal. At. Spectrom., 1995, 10, 363.
14. H.-J. Yang, S.-J. Jiang, Y.-J. Yang and C.-J. Hwang, Anal. Chim. Acta, 1995, 312, 141.
15. J. I. Garcia-Alonso, A. Sanz-Medel and L. Ebdon, Anal. Chim. Acta, 1993, 283, 261.
16. S. C. K. Shum, R. Neddersen and R. S. Houk, Analyst, 1992, 117, 577.
17. U. T. Kumar, N. P. Vela, J. G. Dorsey and J. A. Caruso, J. Chromatogr., 1993, 655, 340.
18. W. L. Shen, N. P. Vela, B. S. Sheppard and J. A. Caruso, Anal. Chem., 1991, 63, 1491.
19. N. P. Vela and J. A. Caruso, J. Chromatogr., 1993, 641, 337.
20. S. C. K. Shum, H.-M. Pang and R. S. Houk, Anal. Chem., 1992, 64, 2444.
21. S. C. K. Shum and R. S. Houk, Anal. Chem., 1993, 65, 2972.
22. G. Zoorob, M. Tomlinson, J. Wang and J. Caruso, J. Anal. At. Spectrom., 1995, 10, 853.
23. Y. Liu, V. Lopez-Avila, J. J. Zhu, D. R. Wiederin and W. F. Beckert, Anal. Chem., 1995, 67, 2020.
24. M. J. Powell, D. W. Boomer and D. R. Wiederin, Anal. Chem., 1995, 67, 2474.
25. O. F. X. Donard, B. Lalere, F. Martin and R. Lobinski, Anal. Chem., 1995, 67, 4250.
26. M. J. Vazquez, A. M. Carro, R. A. Lorenzo and R. Cela, Anal. Chem., 1997, 69, 221.
27. C. M. Tseng, A. De Diego, F. M. Martin and O. F. X. Donard, J. Anal. At. Spectrom., 1997, 12, 629.
28. Ph. Quevauviller and O. F. X. Donard, Fresenius' J. Anal. Chem., 1991, 339, 6.
29. E. H. Evans and L. Ebdon, J. Anal. At. Spectrom., 1990, 5, 425.
30. A. W. Boorn and R. F. Browner, Anal. Chem., 1982, 54, 1402.