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In the initial papers reporting the thermal instability of chemically bonded stationary phases on irradiation with a high-power neodymium laser, Raman scattering intensity in the region 2285 to 1130 cm-1 was found to depend on the density of coverage of the silica matrix with alkyl ligands. Further research focused on the dependence of the growth of UV absorption in this region, on heating of the stationary phase, on the density of coverage of the silica matrix with alkyl ligands capable of aromatization. For thermal modification of the RP-2 stationary phase impregnated with paraffin oil a quantitative dependence was found between the growth of absorption in this UV region and the paraffin oil-content of the chromatographic bed. In this study the relationship between the thermally induced increase in UV absorption of RP-8 and RP-18-type stationary phases and Raman-scattering intensity in the aromatic region when the stationary phases are irradiated with a high-power neodymium laser is discussed. The results obtained confirm the assumption of a linear relationship between the growth of UV absorption in this region by the stationary phase as a result of its thermal modification and the density of coverage of the silica matrix with alkyl (octyl or octadecyl) ligands capable of aromatization.
Słowa kluczowe
Czasopismo
Rocznik
Tom
Strony
204--215
Opis fizyczny
Bibliogr. 34 poz., rys., tab.
Twórcy
autor
- Faculty of Textile Engineering and Environmental Protection, University of Bielsko-Biała, 2 Willowa Street, Bielsko-Biała, Poland
Bibliografia
- [1] M.W. Ducey Jr, C.J. Orendorff, and J.E. Pemberton, Anal. Chem., 74, 5576 (2002)
- [2] M.W. Ducey Jr, C.J. Orendorff, and J.E. Pemberton, Anal. Chem., 74, 5585 (2002)
- [3] M.W. Ducey Jr, C.J. Orendorff, and J.E. Pemberton, Anal. Chem., 75, 3360 (2003)
- [4] M.W. Ducey Jr, C.J. Orendorff, J.E. Pemberton, and L.C. Sander, Anal. Chem., 75, 3369 (2003)
- [5] J.G. Dorsey and K.A. Dill, Chem. Rev., 89, 331 (1989)
- [6] J.G. Dorsey, W.T. Cooper, J.F. Wheeler, H.G. Barth, and J.P. Foley, Anal. Chem., 66, 500R (1994)
- [7] A. Tchapla, S. Heron, and E. Lesellier, J. Chromatogr. A, 656, 81 (1993)
- [8] T.C. Schunk and M.F. Burke, J. Chromatogr. A, 656, 289 (1993)
- [9] J.L. Wysocki and K.B. Sentell, Anal. Chem., 70, 602 (1998)
- [10] M. Pursch, R. Brindle, A. Ellwanger, L.C. Sander, C.M. Bell, H. Händel, and K. Albert, Solid State Nucl. Magn. Reson., 9, 191 (1997)
- [11] K. Albert, R. Brindle, P. Martin, and I.D. Wilson, J. Chromatogr. A, 665, 253 (1994)
- [12] J. Clauss, K. Schmidt-Rohr, A. Adam, C. Boeffel, and H.W. Spiess, Macromolecules, 25, 5208 (1992)
- [13] K. Albert and E. Bayer, J. Chromatogr., 544, 345 (1991)
- [14] E.C. Kelusky and C.A. Fyfe, J. Am. Chem. Soc., 108, 1746 (1986)
- [15] D.W. Sindorf and G.E. Maciel, J. Am. Chem. Soc., 105, 1848 (1983)
- [16] X. Zhu, V. Boiadjiev, J.A. Mulder, R.P. Hsung, and R.C. Major, Langmuir, 16, 6766 (2000)
- [17] C.P. Tripp, P. Kazmaier, and M.L. Hair, Langmuir, 12, 6404 (1996)
- [18] M.J. Hostetler, J.J. Stokes, and R.W. Murray, Langmuir, 12, 3604 (1996)
- [19] D.L. Allara, A.N. Parikh, and R. Rondelez, Langmuir, 11, 2357 (1995)
- [20] K. Jinno, J. Wu, M. Ichikawa, and I. Takata, Chromatographia, 37, 627 (1993)
- [21] J.D.L. Grange, J.L. Markham, and C.R. Kurkjian, Langmuir, 9, 1749 (1993)
- [22] T. Ohtake, N. Mino, and K. Ogawa, Langmuir, 8, 2081 (1992)
- [23] C.P. Tripp and M.L. Hair, Langmuir, 8, 1120 (1992)
- [24] L.C. Sander, J.B. Callis, and L.R. Field, Anal. Chem., 55, 1068 (1983)
- [25] W. Prus, Y. Vander Heyden, P. Vankeerberghen, P. Kuś, D.L. Massart, and T. Kowalska, Chemom. Intell. Lab. Syst., 47, 253 (1999)
- [26] W. Prus, The Jubilee Volume, The XXXth Anniversary of The Technical University of Łódź Branch in Bielsko-Biała, Bielsko-Biała 1999, pp. 346-349
- [27] G. Kowalik, K. Rogosz, and T. Kowalska, J. Assoc. Off. Anal. Chem. Int., 82, 297 (1999)
- [28] G. Kowalik, K. Rogosz, K. Bojarska, and T. Kowalska, J. Planar Chromatogr., 12, 429 (1999)
- [29] G. Kowalik, B. Klama, R. Okopska, and T. Kowalska, J. Planar Chromatogr., 13, 25 (2000)
- [30] G. Kowalik and T. Kowalska, J. Planar Chromatogr., 13, 348 (2000)
- [31] W. Prus, J. Fabia, C. Dobosz, B. Szlosarczyk, A. Strządała, and T. Kowalska, J. Planar Chromatogr., 14, 378 (2001)
- [32] W. Prus, M. Sajewicz, and T. Kowalska, J. Planar Chromatogr., 15, 324 (2002)
- [33] C.J. Orendorff and J.E. Pemberton, Anal. Chem., 77, 6069 (2005)
- [34] W. Prus, Acta Chromatogr., 15, 150 (2005)
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BAT3-0037-0021