Research page of Monika Gontarska









Curriculum vitae


List of Publications

  1. "Enantioseparation of S,R-(+/-)-ketoprofen on plain silica gel layers with achiral mobile phase"
    M. Sajewicz, G. Grygierczyk, M. Gontarska, T. Kowalska
    Journal of Liquid Chromatography & Related Technologies, 30, 2185-2192 (2007)
  2. "Enantioseparation and oscillatory transenantiomerization of S,R-(+/-)-ketoprofen, as investigated by means of thin layer chromatography with densitometric detection"
    M. Sajewicz, M. Gontarska, M. Wróbel, T. Kowalska
    Journal of Liquid Chromatography & Related Technologies, 30, 2193-2208 (2007)
  3. "Use of video densitometry and scanning densitometry to study an impact of silica gel and L-arginine on the retention of ibuprofen and naproxen in the thin layer chromatographic (TLC) systems"
    M. Sajewicz, M. Gontarska, A. D±browa, T. Kowalska
    Journal of Liquid Chromatography & Related Technologies, 30, 2369-2383 (2007)
  4. "The influence of mobile phase demixion on thin layer chromatographic enantioseparation of ibuprofen and naproxen"
    M. Sajewicz, K. Karczmarski, M. Gontarska, S. Kiszka, T. Kowalska
    Journal of Chromatographic Scence, 45, 500-506 (2007)
  5. "A study on the oscillatory in vitro transenantiomerization and enantioseparation of the flurbiprofen antimers by means of thin layer chromatography (TLC)"
    M. Sajewicz, M. Gontarska, D. Kronenbach, Ł. Wojtal, G. Grygierczyk, T. Kowalska
    Acta Chromatographica, 18, 226-237 (2007)
  6. "TLC and polarimetric investigation of the oscillatory in-vitro chiral inversion of L-alanine"
    M. Sajewicz, D. Kronenbach, M. Gontarska, T. Kowalska
    J. Planar Chromatogr. - Modern TLC, 21, 43-47 (2008)
  7. "Investigation of the spontaneous oscillatory in-vitro chiral conversion of L-(+)-lactic acid"
    M. Sajewicz, M. Gontarska, D. Kronenbach, T. Kowalska
    Acta Chromatographica, 20, 209-225 (2008)
  8. "Experimental and model investigation of the oscillatory transenantiomerization of L-a-phenylalanine"
    M. Sajewicz, M. Gontarska, Ł. Wojtal, D. Kronenbach, M. Leda, I.R. Epstein, T. Kowalska
    Journal of Liquid Chromatography & Related Technologies, 31, 1986-2005 (2008)
  9. "TLC study of the separation of the enantiomers of lactic acid"
    M. Sajewicz, E. John, D. Kronenbach, M. Gontarska, T. Kowalska
    Acta Chromatographica, 20, 367-382 (2008)
  10. "Thin-layer chromatographic and polarimetric investigation of the oscillatory in-vitro chiral inversion of S-(+)-ketoprofen"
    M. Sajewicz, M. Gontarska, D. Kronenbach, T. Kowalska
    J. Planar Chromatogr. - Modern TLC, 21, 349-353 (2008)
  11. "How to suppress the spontaneous oscillatory in-vitro chiral conversion of alpha-substituted propionic acids? A thin-layer chromatographic, polarimetric, and circular dichroism study of complexation of the Cu(II) cation with L-lactic acid"
    M. Sajewicz, E. John, D. Kronenbach, M. Gontarska, M. Wróbel, T. Kowalska
    Acta Chromatogr., 21, 39-55 (2009)
  12. "On the spontaneous abiotic peptization of phenylglycine in an aqueous medium"
    M. Sajewicz, M. Gontarska, D. Kronenbach, T. Kowalska
    Acta Chromatogr., 21, 151-160 (2009)
  13. "In vitro chiral conversion, phase separation, and wave propagation in aged profen solutions"
    M. Sajewicz, R. Wrzalik, M. Gontarska, D. Kronenbach, M. Leda, I.R. Epstein, T. Kowalska
    Journal of Liquid Chromatography & Related Technologies, 32, 1359-1372 (2009)
  14. "TLC in a search for structural limitations of spontaneous oscillatory in-vitro chiral conversion. Alpha-Hydroxybutyric and mandelic acids"
    M. Sajewicz, D. Kronenbach, M. Gontarska, M. Wróbel, R. Pietka, T. Kowalska
    Journal of Planar Chromatography - Modern TLC, 22, 241-248 (2009)
  15. "On the spontaneous condensation of selected hydroxy acids"
    M. Sajewicz, M. Matlengiewicz, D. Kronenbach, M. Gontarska, T. Kowalska
    Acta Chromatogr., 21, 259-271 (2009)
  16. "On the spontaneous condensation of profens, with ketoprofen as an example"
    M. Matlengiewicz, M. Sajewicz, M. Gontarska, D. Kronenbach, T. Kowalska
    Acta Chromatogr., 22, 81-90 (2010)
  17. "TLC and polarimetric investigation of the oscillatory in vitro chiral conversion of R-b-hydroxybutyric acid"
    M. Sajewicz, D. Kronenbach, M. Gontarska, T. Kowalska
    Journal of Liquid Chromatography & Related Technologies, 33, 1047-1057 (2010)
  18. "Spontaneous oscillatory in vitro chiral conversion of simple carboxylic acids and its possible mechanism"
    M. Sajewicz, M. Matlengiewicz, M. Leda, M. Gontarska, D. Kronenbach, T. Kowalska, I.R. Epstein
    Journal of Physical Organic Chemistry, 23, 1066-1073 (2010)
  19. "Condensation oscillations in the peptidization of phenylglycine"
    M. Sajewicz, M. Gontarska, D. Kronenbach, M. Leda, T. Kowalska, I.R. Epstein
    Journal of Systems Chemistry, 1:7 (2010); DOI:10.1186/1759-2208-1-7
  20. "Oligomerization oscillations of L-lactic acid in solutions"
    M. Sajewicz, M. Dolnik, D. Kronenbach, M. Gontarska, T. Kowalska, I.R. Epstein
    Journal of Physical Chemistry A, 115, 14331-14339 (2011)
  21. "Condensation oscillations in the condensation of mandelic acid"
    M. Sajewicz, M. Gontarska, D. Kronenbach, E. Berry, T. Kowalska
    Acta Chromatogr., 24, 1-13 (2012)
  22. "On simple experimental evidence confirmed by HPLC data of supramolecular aggregation and aggregate mobility with S(+)-naproxen in aqueous ethanol solution"
    M. Sajewicz, M. Gontarska, T. Kowalska
    Acta Chromatogr., DOI: 10.1556/AChrom.24.2012.1.12
  23. "An HPLC-DAD and LC-MS study of condensation oscillations with S(+)-ketoprofen dissolved in acetonitrile"
    M. Sajewicz, M. Gontarska, D. Kronenbach, E. Berry, T. Kowalska
    J. Chromatogr. Sci., 50, 237-244 (2012)
  24. "HPLC/DAD evidence of the oscillatory chiral conversion of phenylglycine"
    M. Sajewicz, M. Gontarska, T. Kowalska
    J. Chromatogr. Sci., 52, 329-333 (2014)


List of conference papers

  1. "Determination of volatile N-nitrosamines in meat products with spices from the Belgian markets by Gas Chromatography coupled to a Thermal Energy Analyzer (GC-TEA)" (poster presentation)
    M. Gontarska, T. Bławut, H. Paelinck, M. Sajewicz
    XXX Scientific Symposium "Chromatographic methods of investigating organic compounds", Katowice-Szczyrk (Poland), 12-14.06.2007
  2. "A study on the ability of ketoprofen to oscillatory transenantiomerization" (poster presentation)
    M. Sajewicz, M. Gontarska, M. Wróbel, T. Kowalska
    49 Polish Chemical Socjety Congress, Gdańsk (Poland), 18-22.09.2006
  3. "On the spontaneous oscillatory transenantiomerization and thin layer chromatographic enantioseparation of the S-(+)- and R-(-)-flurbiprofen antimers" (poster presentation)
    M. Sajewicz, G. Grygierczyk, M. Gontarska, Ł. Wojtal, D. Kronenbach, T. Kowalska
    XXXI Scientific Symposium "Chromatographic methods of investigating organic compounds", Katowice-Szczyrk (Poland), 4-6.06.2007
  4. "On the enantioseparation of the ibuprofen and naproxen antimers in the novel thin-layer chromatographic system with the positive effect of the eluent demixion" (poster presentation)
    M. Sajewicz, K. Kaczmarski, M. Gontarska, S. Kiszka, T. Kowalska
    XXXI Scientific Symposium "Chromatographic methods of investigating organic compounds", Katowice-Szczyrk (Poland), 4-6.06.2007
  5. "On the impact of non-impregnated silica gel and L-arginine-impregnated silica gel on enantioseparation of ibuprofen and naproxen in thin layer chromatography" (poster presentation)
    M. Sajewicz, M. Gontarska, A. Dąbrowa, T. Kowalska
    XXXI Scientific Symposium "Chromatographic methods of investigating organic compounds", Katowice-Szczyrk (Poland), 4-6.06.2007
  6. "Investigation of demixion of the binary mobile phase and its impact on the enantioseparation of profens in TLC" (poster presentation)
    M. Sajewicz, K. Kaczmarski, M. Gontarska, S. Kiszka, T. Kowalska
    13th International Symposium on Separation Sciences, Strbske Pleso (Slovakia), 27-29.06.2007
  7. "Investigation of a spontaneous in vitro structural inversion of S-(+)- and R-(-)-flurbiprofen by means of polarimetry and thin layer chromatography (TLC)" (poster presentation)
    M. Sajewicz, G. Grygierczyk, M. Gontarska, Ł. Wojtal, D. Kronenbach, T. Kowalska
    13th International Symposium on Separation Sciences, Strbske Pleso (Slovakia), 27-29.06.2007
  8. "On an impact of strinning on profen solution. Low reliability of chromatographic quantification of the pure profen enantiomers and their scalemic mixtures" (poster presentation)
    M. Sajewicz, M. Gontarska, T. Kowalska
    7th Balaton Symposium on High-Performance Separation Methods, Siófok (Hungary), 5-7.09.2007
  9. "Thin Layer Chromatographic and Polarimetric Investigation of the Spontaneous Oscillatory in vitro Transenantiomerization of L-Phenylalanine" (poster presentation)
    M. Sajewicz, M. Gontarska, Ł. Wojtal, I.R.Epstein, T. Kowalska
    7th Balaton Symposium on High-Performance Separation Methods, Siófok (Hungary), 5-7.09.2007
  10. "On an in vitro oscillatory chiral inversion of the selected L-amino acids and on its possible implications" (poster presentation)
    M. Sajewicz, D. Kronenbach, M. Gontarska, D. Staszek, M. Wróbel, M. Leda, I.R. Epstein, and T. Kowalska
    1th International Conference on Drug Design & Discovery, Dubai (United Arab Emirates), 4-7.02.2008
  11. "On an in vitro oscillatory chiral inversion of profen drugs and on its several implications" (poster presentation)
    M. Sajewicz, G. Grygierczyk, M. Gontarska, Ł. Wojtal, D. Kronenbach, M. Leda, I.R. Epstein, and T. Kowalska
    1th International Conference on Drug Design & Discovery, Dubai (United Arab Emirates), 4-7.02.2008
  12. "New methods of separation of lactic acid enantiomers by means thin-layer chromatography." (poster presentation)
    M. Sajewicz, E. John, D. Kronenbach, M. Gontarska, T. Kowalska
    II Scientific Symposium "Current problem sof analytical chemistry analitycal", Katowice (Poland), 30.05.2008
  13. "Investigation of the spontaneous oscillatory in vitro chiral inversion of S-(+)-ketoprofen" (poster presentation)
    M. Sajewicz, M. Gontarska, D. Kronenbach, T. Kowalska
    19th International Symposium on Pharmaceutical & Biomedical Analysis, Gdańsk (Poland), 8-12.06.2008
  14. "Investigation of the spontaneous oscillatory in vitro chiral inversion of L-(+)-lactic acid" (poster presentation)
    M. Sajewicz, D. Kronenbach, M. Gontarska, T. Kowalska
    19th International Symposium on Pharmaceutical & Biomedical Analysis, Gdańsk (Poland), 8-12.06.2008
  15. "On the long term spontaneous in vitro chiral conversion of profens in aqueous ethanol solution" (oral communication)
    M. Sajewicz, R. Wrzalik, M. Gontarska, D. Kronenbach, M. Leda, I.R. Epstein, T. Kowalska
    19th International Symposium on Pharmaceutical & Biomedical Analysis, Gdańsk (Poland), 8-12.06.2008
  16. "On spontaneous oscillatory chiral conversion of different carboxylic acids in aqueous media." (poster presentation)
    M. Sajewicz, M. Leda, M. Matlengiewicz, M. Gontarska, D. Kronenbach, M. Wróbel, A. Sekuła, T. Kowalska, I.R. Epstein
    XXXII Scientific Symposium "Chromatographic methods of investigating organic compounds", Katowice-Szczyrk (Poland), 3-5.06.2009
  17. "Experimental evidence of a spontaneous condensation of profens, amino acids and hydroxyl acids in aqueous ethanol." (poster presentation)
    M. Sajewicz, M. Matlengiewicz, D. Kronenbach, M. Gontarska, A. Noworzyn, A. Ostrowska, T. Kowalska
    XXXII Scientific Symposium "Chromatographic methods of investigating organic compounds", Katowice-Szczyrk (Poland), 3-5.06.2009
  18. "On the role of thin-layer chromatography in studying reaction mechanisms upon the selected of condensation." (oral communication)
    M. Sajewicz, M. Leda, T. Kowalska, M. Matlengiewicz, D. Kronenbach, M. Gontarska, I.R. Epstein
    XXXII Scientific Symposium "Chromatographic methods of investigating organic compounds", Katowice-Szczyrk (Poland), 3-5.06.2009
  19. "A Study on the Impact of the Different Carbon Atom Chain Lengths with Chiral Aliphatic Carboxylic Acids on the Course of Spontaneous Oscillatory Steric Conversion Running In-Vitro" (poster presentation)
    M. Sajewicz, M. Gontarska, D. Kronenbach, M. Wróbel, T. Kowalska
    8th Balaton Symposium on High-Performance Separation Methods, Siófok (Węgry), 2-4.09.2009
  20. "A Study on the Impact of the Different Positions of the Asymmetry Centre in Carbon Chain with Chiral Aliphatic Carboxylic Acids on the Course of Spontaneous Oscillatory Steric Conversion Running In-Vitro" (poster presentation)
    M. Sajewicz, D. Kronenbach, M. Gontarska, T. Kowalska
    8th Balaton Symposium on High-Performance Separation Methods, Siófok (Węgry), 2-4.09.2009
  21. "On the mechanisms of enantioseparation in the chiral thin-layer chromatography mode with the silica gel solid bed and densitometric detection" (oral communication)
    M. Sajewicz, D. Kronenbach, M. Gontarska, T. Kowalska
    8th Balaton Symposium on High-Performance Separation Methods, Siófok (Węgry), 2-4.09.2009
  22. "On generality of spontaneous oscillatory chiral conversion in abiotic aqueous media with different carboxylic acids"(poster presentation)
    M. Sajewicz, M. Leda, M. Gontarska, D. Kronenbach, T. Kowalska, I.R. Epstein
    12th European Symposium on Organic Reactivity, Haifa (Izrael), 6-11.09.2009
  23. "Experimental evidence of a spontaneous condensation of amino acids and hydroxy acids in aqueous ethanol" (poster presentation)
    M. Sajewicz, D. Kronenbach, M. Gontarska, T. Kowalska
    12th European Symposium on Organic Reactivity, Haifa (Izrael), 6-11.09.2009
  24. "Spontaneous peptide formation of a-amino acids and condensation of a-hydroxy acids in aqueous ethanol media" (oral communication)
    T. Kowalska, M. Leda, M. Sajewicz, R. Wrzalik D. Kronenbach, M. Gontarska, I.R. Epstein
    12th European Symposium on Organic Reactivity, Haifa (Izrael), 6-11.09.2009
  25. "Badanie oscylacyjnej inwersji chiralnej in vitro enancjomerów kwasu migdałowego" (poster presentation)
    M. Sajewicz, M. Gontarska, D. Kronenbach, T. Kowalska
    II Ogólnopolskie Sympozjum nt. "Nowoczesne techniki badawcze w ocenie jakosci produktów leczniczych", Lublin (Polska), 24-25.09.2009
  26. "On spontaneous oscillatory condensation of phenylacetic acids in aqueous ethanol"
    M. Sajewicz, M. Leda, M. Gontarska, D. Kronenbach, E. Berry, I.R. Epstein, T. Kowalska
    XXXIII Sympozjum Naukowe nt. "Chromatograficzne metody badania związków organicznych", Katowice-Szczyrk, 25-27.05.2010
  27. "On spontaneous oscillatory condensation of S-(+)-ketoprofen in acetonitrile"
    M. Sajewicz, M. Leda, M. Gontarska, D. Kronenbach, E. Berry, I.R. Epstein, T. Kowalska
    XXXIII Sympozjum Naukowe nt. "Chromatograficzne metody badania związków organicznych", Katowice-Szczyrk, 25-27.05.2010