Changes in the uv absorption of silica containing aliphatic moieties after thermal modification, and the quantitative relationship between the changes and the organic group content

• Autorzy: Prus W.
• Języki publikacji: EN

Abstrakty

EN

This paper reports an experiment performed to provide data for exa-mination of the relationship between changes of stationary phase UV spec-tra as a result of thermal modification by heating at 165 C degrees for 60 min and the content of alkyl groups. The results of a study on the quantitative rela-tionship between coverage density of the silica matrix of a TLC-type sta-tionary phase with an aliphatic moiety and its UV absorption after thermal modification are presented. Statistical analysis of the data obtained reveals a relatively high correlation between the increase in absorption and the paraffin oil content of impregnated RP-2 TLC plates. This report shows that evaluation of the aliphatic moiety content capable of aromatization in an impregnated stationary phase or on modified silica can be obtained solely by use of instrumentation typical of a TLC laboratory.

• Wydawca: University of Silesia in Katowice ; Akademiai Kiado
• Czasopismo: Acta Chromatographica
• Rocznik: 2005
• Tom: No. 15
• Strony: 150--161
• Opis fizyczny: Bibliogr. 9 poz., rys.

Twórcy

autor

Prus W.

• University of Bielsko-Biała, 2 Willowa Street, 43-309 Bielsko-Biała, Poland

Bibliografia

• [1] W. Prus, Y. Vander Heyden, P. Vankeerberghen, P. Kuś, D.L. Massart, and T. Kowalska, Chemom. Intell. Lab. Syst., 47, 253 (1999)
• [2] W. Prus, The Jubilee Volume, The XXXth Anniversary of The Technical University of Łódź Branch in Bielsko-Biała, Bielsko-Biała, 1999, pp. 346–349
• [3] G. Kowalik, K. Rogosz, and T. Kowalska, J. Am. Off. Anal. Chem. Assoc. Int. (JAOAC Int.), 82, 297 (1999)
• [4] G. Kowalik, K. Rogosz, K. Bojarska, and T. Kowalska, J. Planar Chromatogr., 12, 429 (1999)
• [5] G. Kowalik, B. Klama, R. Okopska, and T. Kowalska, J. Planar Chromatogr., 13, 25 (2000)
• [6] G. Kowalik and T. Kowalska, J. Planar Chromatogr., 13, 348 (2000)
• [7] W. Prus, J. Fabia, C. Dobosz, B. Szlosarczyk, A. Strządała, and T. Kowalska, J. Planar Chromatogr., 14, 378 (2001)
• [8] W. Prus, M. Sajewicz, and T. Kowalska, J. Planar Chromatogr., 15, 324 (2002)
• [9] Technical documentation of Labsphere’s RSA-HI-20 Reflectance Spectroscopy Accessory for the Hitachi U-2000 spectrophotometer