Journal of Analytical Chemistry

, Volume 73, Issue 13, pp 1242–1247 | Cite as

A New Post-Chromatographic Derivatization Approach to the Identification of Alcohols and Phenols in Complex Mixtures by a Combination of Planar Chromatography and Matrix-Assisted Laser Desorption/Ionization Mass Spectrometry

  • C. A. Esparza
  • N. Yu. Polovkov
  • R. S. BorisovEmail author
  • A. V. Varlamov
  • V. G. Zaikin


A simple and suitable approach to the post-chromatographic derivatization in the analysis of alcohol and phenols mixtures by a combination of thin-layer chromatography and MALDI mass spectrometry was proposed for the first time. The chemical modification of analytes was accomplished by the treatment of eluted zones on thin-layer chromatograms by 3-bromopropionyl chloride in the presence of an excess of a base (pyridine or triethylamine). The resulting derivatives contained a residue with a constant charge (ammonium fragment) that ensures the efficient desorption of the derivatized analytes from the sorbent layer during MALDI. It was shown that the proposed approach allows the recording of mass spectra with a high signal/noise ratio and the detection of alcohols and phenols of different structures. The reproducibility of such MALDI mass spectra is rather high, which predetermines a possibility of building chromatogram curves using total or selected ion current and, hence, their visualization and treatment on the quantitative level.


TLC MALDI derivatization combination of TLC and MALDI alcohols sterols phenols terpenols acylation quaternization 



This work was supported by the Russian Foundation for Basic Research, project no. 16-03-00632a in the optimization of procedures of the application of TLC/MALDI and project no. 15-03-07616a in the use of derivatization approaches.


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Copyright information

© Pleiades Publishing, Inc. 2018

Authors and Affiliations

  • C. A. Esparza
    • 1
  • N. Yu. Polovkov
    • 2
  • R. S. Borisov
    • 1
    • 2
    Email author
  • A. V. Varlamov
    • 1
  • V. G. Zaikin
    • 2
  1. 1.Peoples’ Friendship University of Russia (RUDN University)MoscowRussia
  2. 2.Topchiev Institute of Petrochemical Synthesis, Russian Academy of SciencesMoscowRussia

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