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Extending equal-spreading criteria to two-dimensional thin layer chromatography - the points in a unit square problem revisited

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Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Optimization of two-dimensional thin-layer chromatographic separation often relies on selection of the two most orthogonal chromatographic systems which best co-operate in the separation. This is mainly achieved by investigating the correlation between R F values or scoring the distances between the spots. This paper presents and discusses another approach, based on the distances to the closest spot and to the top or bottom of the plate. The theory arises from a well-known geometrical problem about equal-spreading of the points inside a unit square. Two coefficients are proposed - sensitive and insensitive to complete separation, which are the two-dimensional version of previously proposed R U and R D criteria (retention uniformity and retention distance, describing the equal-spreading of the spots in one-dimensional chromatography). They are included in the range 0-1 and their distribution as a random variable is well defined and not affected by the number of separated compounds.
Rocznik
Strony
309--327
Opis fizyczny
Bibliogr. 19 poz., rys., tab.
Twórcy
autor
Bibliografia
  • [1] G. Guiochon, N. Marchettia, K. Mriziqa, and R. Andrew Shalliker, J. Chromatogr. A, 1189 , 109 (2008)
  • [2] M. Dumarey, R. Put, E. Van Gyseghem, and Y. Vander Heyden, Anal. Chim. Acta, 609 , 223 (2008)
  • [3] M.A. Hawrył, M. Waksmundzka-Hajnos, and T. Inglot, J. Liq. Chromatogr., 28 , 2245 (2005)
  • [4] H. Kalasz, A. Hunyadi, and M. Bathori, J. Liq. Chromatogr., 28 , 2489 (2005)
  • [5] T. Tuzimski and E. Soczewiński, J. Planar Chromatogr., 16 , 263 (2003)
  • [6] M. Waksmundzka-Hajnos, A. Petruczynik, M. Hajnos, T. Tuzimski, A. Hawrył, and A. Bogucka-Kocka, J. Chromatogr. Sci., 44 , 510 (2006)
  • [7] P. Owen, A. Pendlebury, and A.C. Moffat, J. Chromatogr., 161 , 187 (1978)
  • [8] P. Owen, A. Pendlebury, and A.C. Moffat, J. Chromatogr., 161 , 195 (1978)
  • [9] A.C. Moffat, J. Chromatogr., 110 , 341 (1975)
  • [10] G. Musumarra, G. Scarlatta, G. Cirma, G. Romano, S. Palazzo, S. Clementi, and G. Giuletti, J. Chromatogr., 295 , 31 (1984)
  • [11] G. Musumarra, G. Scarlatta, G. Cirma, G. Romano, S. Palazzo, S. Clementi, and G. Giuletti, J. Chromatogr., 350 , 151 (1985)
  • [12] M. Daszykowski, M. Hawrył, M. Waksmundzka-Hajnos, and B. Walczak, Acta Chromatogr., 20 , 283–307 (2008)
  • [13] Ł. Komsta, W. Markowski, and G. Misztal, J. Planar Chromatogr., 20 , 27 (2007)
  • [14] R Development Core Team (2008). R: A language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria. ISBN 3-900051-07-0 (www.r-project.org)
  • [15] R. Leardi, Nature-inspired methods in chemometrics: genetic algorithms and neural networks, Elsevier, Amsterdam 2003
  • [16] C.B. Lucasius and G. Kateman, Chemom. Intell. Lab. Syst., 19 , 1 (1993)
  • [17] C.B. Lucasius and G. Kateman Chemom. Intell. Lab. Syst., 25 , 99 (1994)
  • [18] A.C. Moffat (Ed.) Clarke’s Analysis of Drugs and Poisons, 3rd edn, Pharmaceutical Press, London, 2004
  • [19] H.T. Croft, K.J. Falconer, and R.K. Guy, Unsolved Problems in Geometry, Springer, 1991, p. 110.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BATE-0001-0026
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